You may already think your coworkers sometimes act like a bunch of kindergarteners, so here's a chance to join in. Remember the joys of show and tell? Showing the class a seashell and telling them how you found it on a family beach trip. Showing everyone a trophy and telling them how you won it in tee-ball. Showing everyone an empty shoebox and telling them they might want to stand on their chairs because it seems your snake has escaped. Ah, memories.