When I wear corpo + glace, AM + glace or whatever + social. When I'm in close proximity, usually at a silence to fill in a gap, people do a sigh or and inhale. It gives me the impression that they're either annoyed, like the smell, or getting a hit.

Does this behavior happen to anyone else?

I think you just give more attention how people breath when apply Pheromones

Second. I find myself almost in a more calm confident state with some mixes and this allows me to focus more on noting my hits and more importantly, makes me self aware of how I'm being perceived. This in turn, allows me to better deliver my dialogue when I'm working.

Yep. Often.
Its like when you smell something different and get a whiff to sus it out.