What's this Tiger Trying to Say

Tiger gave me a look I haven't seen before this morning. It looks like a warning but I think it may have been more benign. It was an early, cold morning and I don't think it was directed at me. Maybe just a yawn. It's the tongue hanging out that puzzles me. Any thoughts?

It's a thing that some animals do to pick up scents of other animals. https://en.wikipedia.o​rg/wiki/Flehmen_respon​se

I bet he listens to heavy metal!

Maybe he's saying "whaazzuuuup"

I was gonna say...looks like it was sniffing (you, or something else near by); second angle is great! "Nyahhhh"

"Oh, the photographer wants to take a picture of the big bad scary Tiger.. Blaaaah!"

Truly amazing moment.

I have been told it's "air scenting" and that they have scent glands in their mouths. I had never seen it before. A few moments later, in a more peaceful mood, she posed calmly for these.

That reminds me, I ought to trim the hair in my ears tonight.