Appetizers can be set out in the living room, drinks in the study, main dishes in the dining room and dessert and coffee in the kitchen. Because most guests have never been to the house before, put a colored light bulb in the yard or a porch-light fixture to help them locate it. Hand out nametags that resemble a welcome mat. If going to a housewarming party, wrap the gift in the real estate section of the newspaper. If the new house has a large yard, bring something to plant in the yard as the housewarming gift.
Example are seedlings, bulbs or even a small tree.