It is common for one or more sides to be open to free allow movement in and out. Tent seating is the number of people who can be accommodated under a tent. If the location has permanent rest room facilities, be sure they are unlocked, clean and well lit. If your outdoor location is not equipped with rest room facilities, arrange for one portable toilet for every 100 guests. Be sure there are directional signs.
Hot colors stimulate appetites.
A place setting is called a cover. The knife blade should face away from the plate.