It’s time to wash your hands again, but this time you do say the blessing. It’s customary not to speak at all between washing your hands and saying the blessings over the matzah. You can use this time to reflect on the sanctification and purification that you’re undergoing. 


haggadah Section: Rachtzah
Source: http://www.dummies.com/how-to/content/the-haggadah-and-the-steps-of-a-seder.html