I think if he actually likes you it will become pretty obvious :) i agree with ra1nb0w
If he likes you then he will do everything to meet you or talk to you. If a guy is is always making up excuses to see you or talk to you then he likes you. And men tend to get a little emotional when they like you... They kinda soften...That is when you know he likes you...i hope it helps... and if they like you.. men reveal it pretty soon...verbally reveal!
If you see a buldge in their crotch-usually a gewd indicator
no worries glad to be of help ; )