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Arrange your seating near any windows. Leave out a few creative pieces. Make a spot for guests to leave their coats. Add 1 or more tables for food and drinks.
Placing your seats near the windows will improve the natural lighting and give your guests a relaxing view. If the room doesn't have any windows, place the seating near lights or an art piece. Creative pieces of furniture can give your guests something to talk about and brighten the mood. If you have a decorative lamp, chair, or artistic sculpture, leave it out somewhere that it will be noticed but not act as an obstruction. Try to accentuate the best features of your room. If you have a high-quality sofa, for example, drape it with a few colorful throw blankets. Coat racks are traditional furniture pieces for parties. If you don't own one, you can either install a coat hanger on the wall or designate a closet for guests to leave their coats. You can also have guests leave their coats and bags on a bed or couch in another room. Refreshments can liven up a party's atmosphere. If you're hosting a small to medium-sized party, arrange a single food table for refreshments. For larger parties, lay out multiple small tables for mini food stations instead.  Do not place the food table near the entrance to prevent blocking the door.  Use a trolley as a portable refreshments station if your room is too small for a table.