To work as a server you need to have serious people skillz. The ability to bite your tongue when a guest is obnoxious to you is high on the list, as is the ability to maintain your own sense of self-worth when customers and your boss treat you like you’re an imbecile. Staying fit helps, since you spend your entire day on your feet. Your employer will expect you to be able to handle money properly, treat guests with respect and attention to detail, and be reliable. They have difficulty getting people to come in on short notice, so if your life is complicated, don't expect that you can just call in sick.