Demeanour refers to a person's behavior, attitude, or how they present themselves. It describes their overall manner or way of conducting themselves in a certain situation. Full definition
The combination of Burstyn's soothing voice and the calm demeanour of his two feline co-stars — Clawdia and Mr. Pirate — seem to appeal to cat lovers and non-cat lovers alike. (globalnews.ca)
Guinea pigs are sensitive to discomfort, so there might have been something you did to make your guinea pig unhappy or uncomfortable — especially if it was an overnight change in demeanour. (petsmagazine.com.sg)
Varane, born in Lille, had already finished his campaign before Zizou made the ball, but despite his calm demeanour on the phone, it's hard not to get carried away once the World Cup winner makes his intentions known. (footballwhispers.com)