That sounds like Kharma . . . She's SOOOO serious - and then suddenly, those ears shoot up, the head cocks sideways and you can see a plan forming in that head . . . and off she goes . . . and comes back from whatever mischief she's been in THIS time with that big, long tongue of hers hanging out of her mouth sideways and a goofy grin on her face
Then, she settles down, pulls the tongue in and resumes her Long Face . . .