Well...
what i think is..
HOw old are you..?
11-14...well...is doesn't really matter if you are one of those popular...stuff..people..
because at that age people will wanna show off their boyfriend to their friend or you really like him and want to be together with him..
15-19...different...but you should seriously tell him that you like him...if you really do..
but you should like playful telling too...it works...because you re not a little chird,,kids...anymore...so you should do both...
20+...same...more serious than that...if you really want to marry him..
but if not....just don't 表白..let him do it,,if you 表白 he will think you are the kind of people that will move too quick