A dog that approaches calmly with relaxed body language and gentle licking is often showing comfort and familiarity.
3. It May Be a Stress Signal
Some dogs lick excessively when nervous.
If licking happens alongside:
- yawning
- avoiding eye contact
- tucked tail
- lip licking
- pacing
it may signal anxiety rather than affection.
What Studies Show
Research into canine social behavior suggests licking can play multiple roles beyond affection.
A study published in Applied Animal Behaviour Science has noted that dogs use licking as part of social communication and appeasement behaviors, especially in interactions with familiar humans.
Another area of study from veterinary behavior researchers shows repetitive licking may increase when dogs are stressed or trying to calm themselves in unfamiliar situations.
These findings support the idea that licking should be understood together with the dog’s overall body language.
Is It Safe?
Is It Safe?

Usually casual licking on intact skin is