She seems quite friendly and possibly even flirty I can't say for sure, but emoticons would give me a better clue actually...

From my personal archives, the ONLY time I am that friendly and not romantically interested is if we already have a close confidante like friendship going.

I take it you 2 don't and that she is possibly into you.

My honest advice?

If you 2 live within driving distance, ask her to check out some gaming thingamabob with you.
A casual outing garnered on a mutual interest is a stress free way to meet up, no pressure on either of you. This way you get to check if there's any "vibes" she's giving off, possible chemistry and taking mental notes of her body language.

Then report back and give us more info

Better yet, she may be able to be more clear with you in person and you either have the beginnings of a great friendship, a life long love story, or both!

Just think about it, she may feel weird about telling an internet guy she likes him, but may be more forthcoming after meeting you in person.

I know I would atleast...

S4 she seems to like you, how much none of us know, but if you don't try and persue what may be a hint, she may just slip away unbeknownst to you, because she herself doesn't know how to hint harder without looking creepy.

Like you said, if it happens it does, if it doesn't, so be it, you've got nothing to lose, all she will say is yes or no.