Guys--HOW LONG...?

Depends on the situation I wouldn't set a time frame on it honestly, I mean unless you and him have been flirting non stop for 2 months and STILL nothing thats a differnt story, move on.. who knows wtf the guy is up to haha, But if it's more of just a friend thing no flirting no dates.. with just the 2 of you.. how would he know you like him? a year could go by who knows but yeah if you've been flirting for like 2 months now and ur not even dating.. well time to move on, hes just a friend =P