Hi Karen. Begin by treating any stains you may have on your pavers. You don't want them to show thru the paint. Then spray or roll on a coat of concrete primer. Next apply 2 coats of acrylic cement paint with a roller or sprayer. Be sure to allow them to dry between coats.
Here's a post on painting pavers.
This tutorial may help: https://somuchbetterwithage.com/diy-painted-brick-pavers/