Best tips for flirting for a introvert?

I am seeing the guy I'm completely in love with next week, we were talking for a while until he moved away but we both have a mutual gathering to attend. I am absolutely awful at flirting after being engaged to my ex for so long we broke up about a year now and I have absolutely no idea how to even flirt anymore I have turned in to a introvert, anyone have any tips on this it would be greatly appreciated
Thanks guys
Best tips for flirting for a introvert?
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