what if you like someone but you don't know if thye like you back. what should I do. please tell me I got to k

Answer 1

If Your Brave: You ask them.
If you're like me: Pay attention to their body language you know? Do they "tickle" or flirt with you? Are they trying to find ways to talk to you? Do you catch them staring at you only to have them turn away and blush? Stuff like that! Good Luck!
A.L.

Answer 2

Your heart will let you know when someone is loving you back and that's a fact.