Yeet sign based and mainly for people already in a relationship but can be modified for otherwise
This is very much for memes but it works
So say you are on a date with your bf or gf at the movie theatre. He goes to grab a piece of popcorn from the popcorn pile and you put your hand in and do the yeet sign (if you dont know it's this sign 👌) and if the boy says 'did you just get me?' Or anything of the sort just say 'I thought I already got you'
If its for a pickup line you could say 'I'd love to get you tonight' or something.