Unnerving smile
Not quite the work post that I hinted at earlier, or you were screaming for, but we're getting closer.
Now I don't strictly work in a customer-facing job so it's not something I have to worry about, but there are people at my workplace, the company HQ, that do speak with outsiders, with tenants (I work for a housing association). I may have mentioned this before when I went into the bank to get a loan and after sitting down with a lady to do the application, fill out all the paperwork, I went to leave and we shook hands and she said "It was nice to meet you" and I was literally disarmed, I stopped in my tracks and didn't know how to react (although not unusual for me).