If you want to ask out your waitress, make sure you put your best foot forward to get her to notice you. Be polite whenever you interact and try and make conversation if she's not busy. For example, talk about your day for a little bit and then ask her a few questions about her day.

How do you ask for a hostess number?

As long as you let her know you've had a wonderful time with her, find her interesting and attractive and want to meet her again. If she's had a great time as well, she'll very likely give you her number and go out with you. That said, most waitresses are never allowed to have their phones on them while working.

Do waitresses get hit on a lot?

The restaurant I work at has a popular bar, so people are often drunk before they even sit down to eat. The waitresses get hit on a lot. Having said that, the owner of the restaurant (who is a woman) actually encourages the waitresses to flirt with male customers to get drink sales up.