What would you serve at a drinking party for 21 year olds?

i just had a birthday party and what i served was hot wings with ranch dressing , taco salad ,ham roll ups , crap salad , pico de gallo dip, guacamole dip and lots of chips oh and i had a veggie tray , and , a cheese pickles olives tray and every body loved it and my sister was my bartender she looked how to mix drinks and it was the best every body loved my party