Once when working from a hotel a fire alarm went off about 5 in the morning, we all had to evacuate and wait in the designated spot until they gave the all clear. I knew this hotel was popular with girls, so while I was standing out there I was trying to work out who the other escorts were and it became a good way to pass the time.
Such things I was looking out for were girls on their own, as it's not that common for 21 year olds to stay in large 4* hotels by themselves. Also looking out for very tired women who have not gone to bed yet and still wearing a secretary uniform.
Tommorow a client is taking me out to buy sexy underwear, he is in his 70's so I think that will look pretty obvious to anyone too.