Now, we all get curious at the end of a session if the SP had as much as a good time that we had.
Without asking them outright, sometimes you just have to pick up on the subtle things that an SP does that indicates that they enjoyed your company.
I've had one SP cuddle up next to me afterwards with our perspiring bodies interlocked. Nothing was said as we just caught our breath. Usually someone would be inclined to say something to beak the silence but we were just comfortable with each other not to say anything.
I've had a couple SPs give me a friendly slap on my bare ass as I hand them a fresh towel for their shower
My best indicator from one SP was after a CIM where she was in no hurry to run to the bathroom. She took her time and gave me a thumbs up and high five for her approval.
Subtle signs like this always leaves a good feeling inside and make the session more personable.