When this day is over, or sooner if you can manage it, leave your work on the job site and bring your social life home with you. You like these people enough that you want to know them better. Outside the pressures of professional life, everyone is relaxed enough to be the perfect host or guest. Open your favorite beverages, or pass around the treats that you know they all like. As the beautiful afternoon darkens into the magical night, consider unique ways to illuminate a room. Anything not requiring a visit from the firefighters is acceptable.