Good lines to a guy to begin texting?

Ok so there is this guy we are not dating just friends. But he has told me i was cute and all that kind of stuff. Well he will text me first sometimes and say "Hey Cutie!! :)" What are some good flirty sayings to say to a guy when he says that or you want to start the conversation? (he is just a flirty friend) It was be awesome if some guys would answer this too! :) thanks!!