Celebrate the grand Irish holiday with a toast - PurpleTrail has the best St Patrick's Day party ideas for a night you and your friends will never remember. These Adults' St. Patrick’s Day Games will add some extra fun to your St. Patrick's Day party! From an adult version of pin the shamrock on the leprechaun to a hot potato drinking game, they're lots of fun! Saint Patrick Day Activities for St Paddy's: Party Game Ideas for Kids, Adults, Friends, Preschoolers, Seniors - St Patrick's Day Trivia Activities Contest.