What is a good way to let a guy know you're interested?

Flirt and get touchy but not too touchy. it might make you look desperate. just try to spend your spare time with him or when you see him start a conversation. we guys like when a girl starts a conversation because we always have to started. if he's interested he will definitely ask you on a date and then it's all up to him to like you for who you are. Remember always be yourself.

While talking to him, put your hand on his arm below the elbow. Anything below the elbow means you're interested in being more than friends. Seriously, try it and let me know how quickly he asks you out!

well, you could talk to more often (but not in an obsessive way) look at him more. (trust me this really works. but again not like a stare, just small simple glance from time to time) or when he tells a joke or says something funny (even if its not... ;) giggle. guys love that.

Ask him to hang out sometime and do something that allows you to talk alot and really get to know each other.

body language. the way you look at him. the way you smile at him. little things that "JUST FRIENDS" don't do like putting your head on his shoulder or asking him to hold you.

Flirt and tease him

haha talkin to him