That is too cute !
Watch out - one day you may have the whole FOOT in your mouth for real when your not expecting it !
We used to play "Get your tongue" with a RB cocker - I'd pretend to want to touch her tongue and she'd snap it back in... only to stick it out further the next time - I'd pretend again to "Get It" and she'd pull it back...then stick it out FARTHER.....she could do this till her tongue was hanging out as far as she could get it - it was the cutest thing - They can really keep us laughing with silly stuff can't they ?