This is something I've been meaning to start doing as well. I've yet to actually close a bang from a hotel bar though. Hitting up hotel bars that are near the airport is a good place to start as there tends to be a lot of them concentrated in a small area. If one venue is a dud just bounce to another.
"Does PUA say that I just need to get to f-close base first here and some weird chemicals will be released in her brain to make her a better person?"
-Wonitis