Just found this ebook for free on Google books.

Thai – English Bar Girl Small Talk Translation Ebook

Some of you might find it useful on your travels 🙂

https://books.google.co.th/books?id=2UvtRMtkPZcC&printsec=frontcover&dq=thai+bar+girl&hl=th&sa=X&ved=0ahUKEwjXn_CznozZAhVMRY8KHUOEDw0Q6AEIJTAA#v=onepage&q=thai%20bar%20girl&f=false