Going to a bonfire and need some flirting tips!

I'm going to an end of the summer bonfire Wednesday night with all my friends. A guy I have recently met through my best friend is going to be there too, and I would like to make one last GREAT impression on him. What are some things I can do/say that will possibly make me stay on his mind? Also, what should I wear? Even at night it's pretty warm, so nothing to heavy. Any answers will be greatly appreciated! :)
Going to a bonfire and need some flirting tips!
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