I will usually ask what do they mean?
Some want to know will you tell everyone in the town.
Some want to know is there a sign outside, do neighbours know(incall)?
Some want to know will their neighbours know(outcall)?
Someone asked will the kitchen staff know (hotel incall)?
For each I have an answer. Why would I tell everyone in town, I'm a woman with a full life I'm hardly going to run out and say "Look I've just shagged that bloke for money".
Regards kitchen staff, I'd booked a hotel room for 2 nights for 3 guests, I saw one man on the second day of my stay, and the person asking was the 2nd person arriving on the morning of the final day. No other visitors, I kept to myself, did go to the bar and read my Kindle for a few hours on evening. I didn't post my exact location on any of my adverts. How would they know that I was a prossie working from the hotel?
Neighbours will only know if they've been reading my website, and even then they'd need to know I was on a 'sex' booking and not doing any of my other jobs.