Is this an un-gentlemanlike idea?

[j0ey0ey]

im attracted to this girl and shes attracted to me too but we never approach each other... but recently i got her screenname from a friend of mine... now for me its much easier to introduce myself online then mesh with it in reality, but im scared that if i messaged her without literally asking her for her screenname she might think its rude n stuff... so wht should i do.. and our age group is around 16ish

[CheeseOnToast]

Fuck no it's not un-gentleman like.

Just drop her a mail asking her to add you and see what happens.

Flirting by email/messenger, the way of the office ;)

[otter]

but im scared that if i messaged her without literally asking her for her screenname she might think its rude n stuff... so wht should i do..

COMMUNICATE!!!
no she won't think it rude... why would she? i mean, at the very worse she can only tell you to piss off.
or better yet, why don't you just ask her for her screen-name?!

[MrG]

if she likes you then i dont think she will be too bothered about you just adding her

[lil lal]

She will probably guess you like her if you add her but will be pleased if she likes you too.