Milestone comparing momma

How should I react or respond to a mom who is low-key always bragging about her baby's milestones to me and trying to see how they compare with my baby's? I can tell I'm this woman's "compare" friend. I like this woman (I met her in our birthing class), and I want our kids to be playmates, but I'm not interested in playing "who has the better baby" game with her.