You can often tell if a guy is into you by observing his body language and engagement during conversations. Signs might include him making consistent eye contact, leaning in when talking to you, or finding reasons to touch you casually. Additionally, if he initiates contact, texts you frequently, or shows genuine interest in your life and opinions, these are strong indicators of his interest. Overall, his effort to spend time with you and get to know you better can signal his attraction.
The guy will have to tell you but when you do the guy will most definetly know.
http://www.wikihow.com/Know-if-a-Guy-Likes-You
i do! he's not a guy guy though
Check his pants.
Check his pants.
If a guy is truly in love, then will know by the way he looks at her, acts with her and talks about her when she is not there.
The guy you know the guy that sung that song before you know what i mean the guy :D
If a guy likes you but you don't know him he may look at you or walk by you whenever possible.
The guy will be sweating and he will be smiling nervously!
if one of ur friends is a guy
You ask the guy.
the guy tells you