Just read their profile, some have age restrictions, or just ask.
I`m at the other end of the scale, i`m in my fifties and if I fancy someone, say in their 20`s, I just ask if they have an issue with the age diferrence.
As long as you are clean, decent and show a bit of respect and are polite and don`t act like a dickhead, shouldn`t have a problem.
If it`s your first time with an escort, i`d let them know, everyone has a first time and might be a bit nervous
You can just narrow the search down to someone in your age range, say 18-25.
Let us know how you get on