Once your site is open, and you have pinned up all the signs so your jammers can find their way to your event, it is always a great idea to have some kind of check in / welcome desk. It gives you or your event crew a chance to meet everyone, introduce themselves, and give people an idea of what is going to happen over the weekend. It also gives them a point of reference that they can return to if they need to ask any questions, or need to get help from the event crew during the weekend.