How would you handle?

[Rufus]

Baseball coach/basketball ref here again with a game management question. During all pre-game meetings the umpires discuss not disputing judgment calls. My question is how you would handle coaches who don't openly question ball/strikes, but instead nibble on the edges with loud (i.e., easy to hear across the field) comments like:

• Supposedly yelled to catcher "Timmy, where was that?"
• Said to no one in particular "Oooh, that looked really good!"

You get the idea. I know how I would handle as a basketball official but was wondering how you would typically address those kinds of comments (if at all).