Free Printable Baby Shower Games Who Knows Mommy The Best Okay Seriously, Who Knows Mommy Best? 'Who knows mommy best,' is like a trivia game about the new mom-to-be. It asks a range of questions that your guests answer on paper. The person who truly knows mommy the best will win a baby shower prize. The questions are fairly simple if you know mommy to be. These are questions like 'what is mommy's shoe size, what is mommy's favorite book?' This game is one of the top baby shower games. It is really popular because it's a lot of fun, so