17 Signs Of Chemistry Between Two People

If you have experienced these signs, you know you have connected with someone deeply.

Reviewed by Stephanie MintzStephanie Mintz, MA (Clinical Psychology), LMFT
By Sneha TeteSneha Tete  • 

You can go for years without feeling it, and then bam! Suddenly, you run into someone new one day, and the sparks fly left, right, and center – the chemistry is undeniable. No relationship works without chemistry between the two people involved.

Each of us has our own idea of what chemistry in a relationship means. To some, it could be effortlessly bantering back and forth. To others, it could be the ability to know exactly what the other person is thinking and feeling. Chemistry can be instant, or it can grow over a period. It solely depends on the bond you share with your partner. Here are some signs that let you know if you and your partner share chemistry. Keep reading.

1. Instant Fascination

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One of the first things you notice in a person is their appearance. However much you say that you don’t care about a person’s looks, they do play an important role in a relationship. You know you have chemistry if there’s an instant pull you feel towards them – from the captivating looks or infatuating glances you keep exchanging.

2. Body Language

If there’s one thing, apart from your eyes, that can give away what you feel, it is your body language. Women tend to play with their hair, lick their lips, and cross their legs in an attempt to get your attention. Men, however, get their hands sweaty as they are eager to stay beside you. The deep breaths, colored cheeks, unconsciously mimicking each other, leaning towards the person, and subconsciously touching each other are some signs that give you away regardless of your gender.

3. Intense Eye Contact

When you feel chemistry with someone, you subconsciously keep looking at them – seeing what they are wearing or doing and trying to make eye contact. But when they catch you looking at them, you shy away. These are instances of intense eye contact shared between the two of you while you are talking or interacting with them. Other telltale signs of chemistry related to the eyes are the dilation of the pupils, raised eyebrows, gazing between the eyes and the lips, and focused, unblinking eye contact.

4. Flirting

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Flirting is a part of all relationships. When you have chemistry with someone, you tend to tone it down to a level where the two of you know you are flirting, but not the people around you. You flirt on texts, but you make sure to never cross a line. The hugs you share are longer than the hugs you would give others. You hug them tighter, squeeze their hands, rub their back, or give a kiss on their cheek. It all feels incredibly intense!

protip_icon Quick Tip

Compliments your partner once in a while your flirt with them. However, ensure that it’s genuine and does not sound forced or fake.

5. Always Smiling

You know you have chemistry with someone when you are always smiling – whether they are around you or not. When you are with them, they find reasons to make you smile, even when you don’t want to. You smile as you think about them when they are not around. Even if they are on a different continent, they are able to make you smile. If this is the smile phenomenon, they are ‘the one’ you have been looking for.

6. Noticing Small Things/Changes

Small details are necessary for a beautiful big picture. When you share a special connection with someone, you start noticing things that others fail to notice. From a new hairstyle, new clothing, their favorite things, likes, dislikes, nervous tics to how to calm them down and cheer them up, you notice everything and make an effort to acknowledge them. You make sure to pay close attention to any story/incident they narrate, and you remember them down to a T.

7. Losing Track Of Time

The phrase ‘time flies when you are having fun’ is an embodying characteristic of what happens when you are with this person. Time seems to literally run away, leaving the two of you behind. You share enough common interests that you can talk about anything and everything. There are so many things you want to tell each other.

8. Tension

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Not the stress-inducing type of tension, but a physical tension always seems to exist between you two. When you are attracted to someone, sexual attraction is also a part of the mix. The flirting and teasing consists of sexual innuendos, and you just can’t keep your hands to yourself.

9. Getting Closer To Each Other

When both of you are always trying to get close to each other in a crowded place, ignoring the world and getting lost in yourselves, it’s a sign that you have chemistry. When you find yourself wanting to spend more and more time together and desiring more and more affection when you are together, the chemistry is there.

10. Not Paying Attention To People Around You

Wherever and whenever you are with each other and doing whatever, it feels as if it’s just the two of you who are most important, and you are the only two people in the world. In a world where cell phones are an addiction, if a person makes you want to keep it aside, that’s your ‘The One’ you have been looking for.

11. Pheromones

Pheromones are chemicals that affect or arouse you when you are attracted to someone. They produce a sweet-smelling body odor that is attractive to the opposite sex (1). Meaning, if you both are attracted to the way you smell, you have chemistry.

12. Enjoying Comfortable Silences

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When you talk, there are endless topics at your disposal. Time seems like it’s fleeting quicker than it’s supposed to. But even when you are not talking, the silence does not seem awkward. There are comfortable silences that both of you enjoy in each other’s company.

13. Experiencing Butterflies Or The Whole Damn Zoo

The strange tingly feeling you get when you are excited about something is what people call ‘butterflies in your stomach.’ But it’s more like a whole zoo stampeding in your stomach when you feel chemistry with someone.

14. Looking Forward To Meeting Again

When you both meet, sparks fly, and you are having such an amazing time you can get lost in the moment. And when it’s time for you to get back to the real world, it’s heartbreaking. You cannot wait to meet again and count days until your next meet.

15. Having Playful Banters

Playful bantering includes flirting and teasing. Such non-harmful things are a playful way to get each other to concentrate on what the two of you share.

16. Teasing Each Other

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If you want to get a reaction out of someone, what do you do? You playfully “annoy” them. The little banter you have, the nicknames, when you push each other around, imitate one another, playfully pick on each other, and anything you do to elicit a reaction out of them act as conversation starters. Teasing is supposed to be amusing and affectionate and not to offend or harm one another.

protip_icon Quick Tip

Keep it playful and light. Also, avoid teasing your partner about their insecurities. Watch your tone and choice of words so they do not feel bitter.

17. The Anticipation

While all these signs show that you and the person you are interested in have chemistry, you may still have an anxious feeling of whether or not they feel the same. You want to make something more out of the relationship and solve the puzzle so that just the two of you can be together.

Infographic: 7 Ways To Improve The Chemistry In A Relationship

It is often misconstrued that chemistry between couples is something that is either naturally present or it cannot exist. In reality, chemistry between two individuals may dwindle over time, especially in long-term relationships. Fortunately, it can also be cultivated or improved upon.

Check out the infographic to find some ways to improve the chemistry in a relationship.

7 ways to improve the chemistry in a relationship (infographic)

Illustration: StyleCraze Design Team

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These were some of the signs that tell if two people have chemistry between them. It is important to remember that while chemistry is a good start to a relationship, it alone does not define the relationship. You can use chemistry as a building block to cement your relationship with shared values, mutual understanding, and maturity for a long-lasting bond.

Frequently Asked Questions

How long does it take to feel the chemistry?

Chemistry has the potential to erupt at almost any time. You may feel it with someone instantly or after spending a few weeks or months with them. Although it could take some time to develop, you should not deny yourself the chance to feel that special sensation. However, when setting expectations, be reasonable. You can only truly know you have chemistry with someone when you can see and respect them for who they are, including their strengths and weaknesses.

What causes intense chemistry with someone?

You can create chemistry through shared values and humor with someone who speaks your love language and makes you feel noticed, heard, and understood. This could help to explain why it feels so good to have chemistry with someone.

Key Takeaways

  • The instant attraction and that ”spark” you feel with someone is a tell-tale sign of chemistry between you two.
  • If you find yourself making intense eye contact, flirting, and always smiling at someone, you probably have good chemistry with them.
  • You cannot wait to meet again and count the days until you meet next when you share that special connection with someone.


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  1. Human Pheromones
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