How do I pull this girl who is dtf?

So there is a girl (I'm 25) and she told my friend she is dtf with me but I dont like know what to say or do when we all meet up in 2 days. He will leave us eventually but lime.... what the hell do I do to initiate this. The best i got is starting off with a compliment or something. I gotta flirt. But idk. Help