First meeting

[MrTyphoon]

Whats the best way to approach a girl for the first time? like just out on the street?

[kylem1229]

Walk over and say hi. If she talks to you, asks about her interests, start a conversation with her.

[Harley Quinn]

Noononoonoo. Don't speak to a random girl in the street, that'll definitely make you seem creepy.

[NeuroTiger]

A smile.
Regular sweet smiles will approach her to you.
Good luck! ;)