Well, the person i have a crush on i think he likes me, or used to like me b4 he started dating Taylor, anyway, he would just tilt his head, stare at me, and whisper to himself, "wow". i think he use to like me. and another tip. just tell him/her that you like them. trust me it feels sooooo good once u finally get it out. seriously just trust me i promise you'll feel a lot better.
To know if your crush likes you when you are alone with her, observe to see if she will make any contact.
Ask him!
You should go for it if you know that person likes you go for it no holding back.
Ask Him.
No your ugly.
http://www.wikihow.com/Know-if-a-Guy-Likes-You
date him. if u like him. :)
by the way your crush acts and looks around your friend
you ask him
depends on if you know he likes you or not
If your crush's sister tells your sister that your crush likes you, it's a good sign that your crush may have feelings for you. It might be a good idea to talk to your crush directly to confirm these feelings and see where things go from there. Communication is key in situations like this.
If he doesn't know him, then he's probably being like that because he likes you and he is jealous of the other guy, especially since your his best friends sister, who would be out of limits. He might know the other guy, and be acting like that because the other guy might be gay, but there's no need to tell bad jokes about him. It could also mean that your brothers best friend is gay himself. People who are accusing others of being gay are often hiding their own homosexuality.