Sniffing

The dog was sniffing a stick.

German Shepherds are good at sniffing out drugs.

Sniffing that brown flask made me nauseous.

Dan's dog was sniffing a dead rat in the street.

The bear was sniffing around.

I got caught sniffing my shoe.

Tom is sniffing a lot today. He has probably caught a cold.

Sami had a sniffing dog.

The sniffing dog inspects everywhere.

He was sniffing his armpits.