Vic Reeves

I pretended to be dead in front of a pig once, because I heard that they snuffle you, they try and wake you up, to check if you really are dead. And if you are dead, they eat you, but they like having a little prod first.

Use 'snuffle' to describe noisy breathing due to health issues like a cold.

Health-related

Snuffle can convey that someone is on the verge of crying.

Emotional distress

Don't use 'snuffle' for objects; it's for people or animals only.

Not for objects

Use this meaning when someone searches for something by smelling, especially animals.

Searching behavior

It can describe a person showing curiosity by nosing around.

Curiosity

'Snuffle' doesn't necessarily suggest rudeness, unlike 'snoop'.

No negative connotation

Use 'snuffle' for sounds more noticeable in a quiet setting.

Quiet environment

A snuffle can signal someone's or something's presence without visual confirmation.

Indicator of presence

A noun form of 'snuffle' can convey a range of emotions subtly.

Subtle Emotion

 on a walk through the rainforest I stopped to investigate this and the to a guy that I was with was most astonished as I knelt down and began snuffling away but actually it was not unpleasant in the way that that dog feces are unpleasant it was it actually

Cassowary Dung's Seedy,...

 other monkeys have more sophisticated tastes the same swamp is home to capuchins they've learned to come down to swamp level at the right time to snuffle a delicacy