Flirt Hand

A hand motion that signifies to someone of the opposite sex (or of the same sex depending on your sexual preference) that you are interested in them.

girl: omg, did you see that hot guy.

best friend: omg, total hottay. i asked to take a picture with him and he used flirt hands.

girl: so lucky, you bitch!

second-hand flirting

Using a friend (preferably the same gender) of someone you're interested in to get the information you want, i.e. sexual orientation, relationship status, social media.

I want to know if Jessica is seeing someone. How do I find out without being awkward or putting her on the spot if she is?

Try second-hand flirting bro. Ask her best friend Mackenzie; she'll know.