How to Know If Someone Likes You ?

1. Keep an eye on how many times you catch her/him staring at you.


2. Take notice of whether s/he smiles at you a lot.


3. Look for whether s/he focuses on you in a crowd.


4. Observe if s/he has suddenly taken more interest in your friends.


5. Pay attention to any significant changes in her/his behavior toward you recently.


6. Start showing her/him a bit more interest and see how they respond.


7. Have a friend talk to her/him or one of her/his friends about you.


8. Ask, '[name], are you interested in me?'

Tips:

1. Hopefully you will not have to use steps 7 or 8, but if you're having difficulty reading her/him, these steps are your last resort!
2. Remember, this is not an exact science, and it may take a few mistakes to perfect your technique

source : about.com