They’re Craving Attention
They just aren’t able to communicate verbally, so they instinctively ask for what they need in various other ways.
They’re Tasting You
Your doggie likes the taste of your skin the same way they would want to lick a salty bone or anything interesting tasting, for that matter.
They’re Navigating Their Environment
Bear in mind that dogs use their, sometimes overbearing but necessary, licking and sniffing to navigate their environment.
Our beloved tail-waggers are often licking our faces because of an instinct passed on in their DNA.
They’re Grooming You and Themselves
A dog licking your face, or any part of your body for that matter, can also be part of grooming. So if you don’t mind the slobber then enjoy the TLC from them.