My guinea pig keeps sniffing my cheek?

[SquiglyPiggy]

Hi! When I hold Pumpkin he keeps sniffing my chin and cheek area. Does that mean he is going to bite me? Is it just sniffing? Is he feeling uncomfortable and is trying to get my attention by sniffing or biting? Any help would be appreciated!

 

[Siikibam]

He’s just smelling you probably. They have a stronger sense of smell.

 

[Talulah]

We had a pig that did this all the time, she never bit us. It was just here