Forget sales ladies form anywhere. They may be super nice but they are there to sale you stuff so you may end up with a bunch of over priced stuff that you don't really need.
I say, get your girlfriens together (or the ones you like how they put their make up on) and have a make up party! I have taugh a few of my friends how to put make up and honestly it is so much fun to make an evening of it.