New to the plate-spinning world, what's a text you've had good success with in order to initiate a hang out?

I'm thinking of using:

Hey, hey want to see you. Let's hang out

Do I need to be more specific with the time or activity? I'm fine when I hang out with the girl and with the first meet-up as we'll usually go out for drinks, wondering how I need to initiate those repeats

edit: should specify I'm in my early 20s dealing with similar aged girls in a college city