i usually never make it obvious i'm into the person these days becasue i know that a girl may have so many different ideas of the sorts of friends or boys she wants and she's into that to just approach a girl in an obvious way just feels wrong to me and too desperate especially if you don't know her, then don't even bother because its just a weird thing to do. ...in fact i usually play the distant card and i never make it obvious, i'll engage in conversation but i'll only flirt if she does first because i don't know if she has a boyfriend or what her thoughts her so it seems pointless, but i tend to be more sensitive! as much as it annoys me ..from my experience girls tend go for the obvious ones, the guys who really have great looks or traits and i've always felt like an inbetweener, a little cool and mild and nerdy ..but girls are generally going to be more drawn to the 6 ft 7 alpha male with the bleached hair and the unshakable confidence ...it always happens every single time in any given environment, class room, at work, playing sports ..and it makes sense to, which means if you are more mild then you will have to work alot harder just to get anywhere ..
but every situation is different, i mean you could be somewhere at university in the canteen with a friend and a girl might show interest and start talking to you ...there are signs where you'll know if she's interested ...
i remember a girl left her mobile number for me at work after a week and i knew she had a boyfriend so i didn't end up calling but that at least showed me that anything is possible..lol
i just dont like the being forward option especially if you have never even interacted with that person, unless you both mutually agree that you are seeking a relationship and click ...