His quiet 'demeanor' [='manner, bearing'] had a calming effect on us.
They maintained a solemn 'demeanor' as they told us the bad news.
She has a shy/friendly/warm 'demeanor'.
(..) My name is Hiccup. Great name, I know. But it's not the worst. Parents believe a hideous name will frighten off gnomes and trolls. Like our charming Viking demeanor wouldn't do that. Morning! - What are you doing here?! - Get inside! - What are you doing out?! (..)2010 How to Train Your Dragon