If your pup is prone to forgetting themselves and talking, you may want to consider a mouth bit to help remind them that no talking is allowed while in pupspace. A muzzle can help reinforce pup’s headspace or can be used if you’re trying to train your pup out of bad habits like chewing/biting. Although, keep in mind that using them too long could actually impede the fun of the play. They would limit the ability to make communicative noises, eating, drinking, licking and other things such as carrying things in their mouth. They can be a good aid to training though and some pups like them while others hate them.