Tell a Secret
This is an extremely efficient way of making someone like you. In the past, this has been used by multiple people and according to almost everyone, this is an extremely dependable way of coming in someones good books!

Casually Touch The Other person
First of all, understand the difference between good touch and bad touch. Your touch needs to be a good one and has to be extremely casual. A lot of curious and sometimes provocative studies demonstrate its effectiveness.
Make it all about them
If the other person realizes that you are taking an effort to make sure they are comfortable, they enjoy, they like you, the other person will automatically starts liking you! When applying this approach, you are supposed to focus on the needs, wants, and perception of reality of another person rather than on your own beliefs.

Act like a monkey
Please understand that this doesn't mean that you literally start behaving like one. Just open up a bit. Don't be shy, be comfortable. This is about imitating face expressions, gestures, speech patterns, or behavior of your partner. This technique is called mirroring, and it really works.

Apologize excessively
Apologizing makes the other person believe that you value the relationship and they start liking you even better! You show that you understand their experience, and this considerably increases their belief in you.

Spill your coffee
Confused? Well, don't be! This advice may seem weird. Why do we have to spoil a first impression by making a clumsy mistake? But a lot of studies confirm that pointing out our vulnerability actually increases our attractiveness and trustworthiness. So well, go for it!
Show that you like them
The most effective way to make someone else like you is by showing them that you like them. Have you heard about the “reciprocity of liking†phenomenon? It refers to the tendency for people to like someone who likes them. So well, now you know!