Signs

What are the signs of when a guy likes a girl? And please name them all and how sure you are bc I never had a boyfriend and everything anmd if anyone wants to no stories to help anser easier I can tell u

usually depending on how old they are which would help me answer but like teen guys usually act like a retard infront of the girl they like or they can be like really sweet. the only way to know for sure if a guy likes you is to ask either you ask him or have your friend go ask him.

ummm well hes 24 and im 19 if that helps