grunting

[nanny pamy]

I'm sure I might have asked this before but I can't remember the answers. Why does Theo grunt??.. its not loud, just a quiet grunting noise. Sometimes he just sits in front of me looking at me grunting continuously. Or when he's looking out of the window he does it. I'm just curious

[Crewella]

My Paddy sits and grunts at us sometimes too, but I've no idea why!