Welcome to [name of mother-to-be]'s baby shower! I'm so glad you could all come to help us celebrate the arrival of this new little [boy or girl]. I've known [mother-to-be] for [amount of time], ever since [give circumstances of your meeting].
[Mother-to-be] is going to make a fantastic mom. She has the tenderness to care for a newborn, the sense of humor necessary to endure the terrible twos, and the strength to make it through the teen years. What's more, she has great instincts, which will guide her in making choices for her baby, no matter how many sleepless nights she's had.
Thanks again for being here on this special day. Help yourself to some refreshments and a drink, and we'll get started with a few fun shower games.