Take two: What are you doing?
An dàrna turas: Dè tha thu a’ dèanamh?
Look at the conversation again:

mmm-mmmm-mmm
mmm-mmmm-mmm

Dè tha thu a’ dèanamh?
What are you doing?

Tha mi ag ithe.
I am eating.

Dè tha thu a’ dèanamh?
What are you doing?

Tha mi ag òl.
I am drinking.

Nach eil thu ag ithe?
Aren't you eating?

Tha mi ag ithe agus tha mi ag òl.
I am eating and I am drinking.

Seadh.
Aye.

Dè tha sibh a’ dèanamh?
What are you doing?

Tha mi ag èisteachd riut ag ithe agus ag òl agus tha mi sgìth!
I am listening to you eating and drinking and I am tired!