What would be your response to a friend who, it seems, is bragging an awful lot?

My daughter is friends with twins and so when we go out together, often the moms come to supervise (my daughter is in middle school so not yet on her own financially, car-wise, etc.). We will accompany them to the mall, or to a restaurant, or to the beach or pool, or wherever. We don’t have to be close to them, physically, so we (the moms) will often hang out while the kids go do their thing.

One of the moms who I consider to be a friend will often brag about her daughters. “They’re very athletic,” or “they get gel manicures! They’re little divas!” or stuff like that. Another example is she will talk about how well they eat (salmon, shrimp, etc.) and how she buys them the best food.

What would you say to someone you feel is boasting? Because our daughters are friends, and we are friends, too, it’s best to have a harmonious relationship. Our school district is small so I don’t want to start a fight with her and alienate her, especially because the kids are friends.

Do I say something and if so, what, or do I just grin and bear it? I’m also totally open to changing my attitude about her comments. Maybe it’s not bragging. Maybe she’s proud. I’m open to your advice.