Horse "foaming at the mouth" What does that mean when you see it?

[CharlieR]

Originally Posted by Riot

It's saliva. Not heat related. It can be a good thing (chewing on the bit, giving in to the bit, using a different flavored/textured bit than normal like a copper bit, having a soft mouth) or a bad thing (a result of fighting the bit, pulling, chomping on the bit, a hard mouth, too much bit)

Clear as mud. Look at how the rest of the horse is acting Relaxed, or fighting the jock?

She looked great. Very relaxed walking the ring, Ears perked, strutting her stuff and calm in the stalls. She came over with the others running in the 6th race today but as they went into the stalls she walked the ring again. Then they put her a few stalls away from those running. When they left they saddled her, walked the ring again and came back into the 6th stall for a few minutes where she'll be for the Haskell.