These do not squeak on grass, pavement, or hardwood (at least the hardwood in my house) or when dry on ceramic tile (slightly squeaky on wet ceramic tile).  They are embarrassingly, distractingly, go-around-barefoot-instead-of-continuing-to-wear-them noisy on the ubiquitous vinyl tile that most businesses use.

I've had shoes that squeak when wet, but were still good footwear.  The "non-marking" rubber tread on these squeaks worse than any other shoe I've ever heard, wet or dry.  These shoes squeak on the industrial vinyl tile at work so bad (even when COMPLETELY dry) that I can't wear them to work.  I switched to my steel toes to finish the day in peace, and sent them back the next day.

No idea if they are any good for people who will never set foot in a place with vinyl flooring (you know, like a grocery store), but if you will, avoid these shoes!