My Marley drools a TON, but my youngest (dixie) is only three months so I couldn't help you there.. But Marley gets all excited and just shakes her head everywhere..But to answer your question, Some do, Some dont.. Some don't ALL the time.. Marley just does it when shes really excited..
Momma to two fawn babies!
Ellie 1.5 Years Docked w/ Natural Ears
Herman 6 Weeks Docked w/ Natural Ears