My default setting is that they're lying back and thinking of England so even if they are enjoying it and are not faking the ooooohs and aaaahhhs I just assume it's an act.
One thing that's mildly pee'd me off in a couple of punts is ladies who really seemed into me/it for 55 mins but then, bang!, an invisible switch was flipped and they suddenly became detached/distant and were very unsubtly turfing me out. Really pricked and burst my illusory feelings of maybe having connected a bit.I ended up slightly deflated but could have been elated.
It's a hard one to call cos I appreciate time is money but I genuinely don't try and nick some extra time and I'm always the one consciously winding it down - basically there's no necessity to be sending me overt signals to clear off.
Ideally, they'd give me a big grin, tell me they enjoyed seeing me, ask me to call again soon and pat my bum on the way out.
I s'pose what I'm saying in a long winded way is they need to keep a consistent mood/approach for the whole booking.