Can yoga teachers or fitness instructors tell if you're in a bad mood?

[Numbersround]

If I arrive at your class in a bad mood, absolutely fuming, but I don't say anything, can you tell? Do people ever give off vibes even if they're just sitting there waiting for the class to begin?

If I arrive in a good mood but it turns out that we don't click, you keep doing adjustments and I'm thinking to myself oh FGS this teacher is so annoying, leave me alone, but I don't say anything, can you tell?

Bump.

They probably can. But most people surely don't leave a yoga class in a bad mood. I don't really get your second bit....

A yoga teacher I had years ago used to claim he could read auras, and that he could tell you were angry from its colour. Barking mad, of course, but he was a decent teacher so I used to smile and change the subject to his other obsession, which was raw food.

But it's fairly obvious from looking at someone expression, body language, breathing whether they're in a good or bad mood, surely. Unless they're very practised at concealment.

I'm an instructor and yes, unless you're a total expert pokerface, of course I can tell. Body language, looks, how you react or don't react when I'm talking to you. Why do you ask?

Pretty sure the whole world can tell when I'm in a bad mood.

But yes, body language, facial expressions etc. You don't need an 'aura' to tell when someone's in a bad mood!

you keep doing adjustments and I'm thinking to myself oh FGS this teacher is so annoying, leave me alone

The reason they're doing adjustments is a) because you're not doing it properly and b) so you don't hurt yourself. They're not doing it to piss you off!