While dogs do lick their lips and nose frequently, it's not a constant action that happens every 7 seconds. It's more about:
* Grooming: Licking helps clean their fur and remove debris.
* Cooling: Panting and licking help dogs regulate their body temperature.
* Sensory exploration: Licking is a way for dogs to explore their environment and gather information.
So, while dogs do lick often, it's not a specific, timed behavior.