I just know that as a guy, if there's a girl I like, then I tend to "play it cool" (almost to a fault) so that I don't seem too creepy. So if you're a girl and I never write on your wall or randomly text you or even sometimes avoid eye contact in a crowded room, it probably means that I like you and I don't want to blow it.
I'm just wondering if girls are the same.
So I don't know how that's a sign.
So, today... i probably would. :)