It's a great question!
Me, I don't like surprises~I'm claustraphobic so if you're getting too near my face, I might freak out. Also, I have this death fear of someone swallowing my earrings (I wear 6 and they were expensive) so forget about the ears too. I know the back of knees is a good spot for some of my friends but I'm so sensitive, it gets sore in a hurry and that's no fun.
So what DO I like? Slow, gentle. Be considerate of my comfort level, pay attention to my signals. Make sure to give lots of water and make sure I get to go to the ladies 😉 Mix it up a lot, use different toys~I find I can stay down longer with a lot of variety.
Hope it helped.
XOXO