Instructions
Research party games based on your theme. For example, the UK website Party Plan has many games for children's parties and sleepovers including outdoor games, food games, swimming games, musical games, racing games and Halloween games for pre-teens. The site also provides family and adult games among others. Home Party Plan Network.com lists many games for adult parties and team builders including job-related games, icebreaker games, gameshow fun and scavenger hunts among others. The website Party 411 is another good resource featuring instructions and ideas for bachelorette and bridal shower games, luau party games, "Survivor" party games, family reunion games and many holiday games.
Run your selected games by friends and family or maybe even play a round or two of some games to make sure they are fun and appropriate for the party.
Display all appropriate game pieces, equipment and prizes while setting up for the party.