How do you flirt with the guy who flirts with everyone?

You have to be sure to stand out, to be slightly cheeky and not back down when he flirts back. Cut him down when he tries to flirt with you, like laugh at him to show him you're the boss, he won't be used to it, and you'll amaze him.

Yeah That's a good idea, U should also find something about him that u don't think other girls would say to him, Make him feel like ur the only one who cares about that one little thing.