The biggest mistake we can make is to ignore the horse whenever they’re making a face. 

It might just be a habit your horse has picked up from another horse.

It doesn’t mean anything to them. 

But if we give meaning to the face, either by ignoring him or telling him off, then we’re unconsciously creating a negative connotation to it.

Instead, spend time with the horse and give them a pleasurable interaction. 

This will shape the behavior into something positive.