Does your dog do this?

[QueenofLouisiana]

After eating a particularly yummy meal DMutt likes to wipe her face on stuff- the sofa, door frames, our legs...

She only does this with her favourite meals (big wiping after tripe today), what is she doing and why?

Yep mine does that,he's just wiping his chops is all.

Yes. We have a tide mark all round the sofa where doggie faces have been wiped, lol.

Yep. We have a Scottie. I can confirm that the water retaining capability of a Scott beard is roughly an egg cup full dependent on human of choice and what they are wearing.
Water to beard ratio increases with bare legs or paper products within the vicinity.

yup tibetan terrier does this all over the carpet

Our lakeland gets a damp flannel beard wipe after dinner for this reason!