Best compliments - When they tell me their name and give me their number (I don't ask for it.) A couple of days after a back to back encounter, the girl told me she wanted to call the agency and tell them she was sick and was going home, just so she could stay with me on her own time.
In stand up doggie "God, it feels like you're coming through my stomach."
While both lying on the bed sweating, and catching our breath "I've never been outfucked by a 37 year old." She was 21.
After or while I'm giving them a massage "Mmmm....Can I hire you?" or "If you become a massuese, I'm coming to see you."
Then there's the other ones that everyone else seems to have gotten. Nice eyes, nice smile, smooth skin, great oral. They aren't over the top in any way and seemed to be genuine from the girl. Which is what I usually prefer.