OK, here are some more...
Mr Remote- He can't make eye contact, you can't engage him in any conversation and when you ask him what kind of work he is in he looks aghast and mutters he works 'in an office'. When you ask if he has an requests or what he makes a non committal noise. You're giving him the best blow job you've ever done and he doesn't move or make a noise, you wonder if he has either died or gone into a coma. He practically runs out after the session and you think OK, so we didn't click. He then sends a text saying Thank you, that was amazing, you really are wonderful and I had the best hour of my life.' You wonder if he was in a different universe.
The terrified one- He won't touch you and requests all services covered, he dashes to the loo to wash his hands after he has fingered you (for all of 3 seconds). He flinches when you get to close to his face and then has a 20 minutes shower afterwards and says 'I bet you see some right weirdos doing this'
The Whore Hag- Not quite a hobbyist, but is super friendly, asks too personal questions and treats you like his best mate, texts outside bookings to tell you a joke or asks how you are. Drops into conversations how he used to go out with an escort and how sometimes he drives for another. He brings you coffee and arrives early saying 'No need to get ready for me, I don't care if you haven't got any make up on'. Tells you everything about his life so you know exactly where he works, his kids names and what his father did for a living. He confuses you because he is so nice, but you get a feeling he is somehow pushing your boundaries.
The Jekyll/Hyde- Nice as pie, friendly and respectful but in the bedroom calls you a dirty whore and wants to know how many men you've shagged today and pushes your head down when giving a BJ. Smacks your arse (without asking) and squeezes your tits a bit too hard. Afterwards, he is lovely again and gives you a tip and tells you to take care with a chaste kiss on the cheek.
The Regular- You're fond of him and he is probably a bit in love with you. He doesn't mind what you do because he loves your company and you sort of know if you said you didn't feel like sex but would he mind taking your bins out he wouldn't mind. You do however fret about each session because it's so dull and you feel you should make an effort to suggest something new and worry you have worn the same outfit 3 visits in a row but you can't remember what he has and hasn't seen you wearing. You flick between being bored to death of him and being grateful you have such an easy regular source of income.