HorsesÕ Friends If two horses are feeling friendly, theyÕll nibble at each otherÕs manes, shoulders, and backÑall those hard-to-reach places! Another sign of affection is groomingÑa mother licks her baby foal when she is born, and later, nibbles the babyÕs coat to keep it clean. Horses also ÒtalkÓ to each other in a friendly way. ThatÕs called Ònickering,Ó and it sounds a bit like a cat purring deeply and loudly.