Check your ego at the door.
Please don't expect to walk into an internship thinking you'll be editing, writing, or styling. As an intern, you will be asked to do photo research, schedule deliveries, work in the fashion closet, and sometimes even pick up coffee or lunches for your editors. Sometimes you'll even be asked to personally pick up things for shoots. When they do, don't hit them with a lame excuse like "I don't know how to take the subway" because 1) if that's the case, you'll probably be deemed too dumb to do anything else and 2) you're a terrible liar. Just be thankful your supervisor even trusts you with those Dior Homme samples.