Anywhere I think I can get away with it
Usually in my bed with music playing, sometimes I touch as in rub my clit cause it's sensitive and I don't feel the need to finger myself or insert stuff.
Other times I'll rub against blanket or use this back massager.
I got it to help with sore muscles from workouts but you know it doubles as a vibe for me anyway, it's small and I can set to anything from 1 which is low to like 3 which is hard.