And tend those drinks
First offer to bring a spare cooler for soft drinks only. That way kids and teetotalers can find what they're looking for easily. Nothing dampers a fun vibe faster than getting frostbite while trying to find the fabled dragonfruit soda.
Ice down the cooler early so its insulated temperature drops before drinks land in it. Then keep it stocked and sorted: bury new arrivals at the bottom till they’re cold, but keep the top varied and dynamic; make sure an assortment of drinks juts out at the top for easy pickin'.
Is there a punch bowl? Be sure to refill it and maintain the balance of ingredients that initially went in. Big tip: Once you have some empty bottles, wash them clean, fill them with punch, and store upright in the cooler. As the bowl gets low, pour the chilled bottles back in to keep the reservoir cold. Or just serve somebody a frosty bottle directly.