Contents of nonchalance

(face whatever crowd you come across with nonchalance)

• the quality of ease (mostly indifference or unconcern),
• but associated with 22 with the sense of insouciance, being up for any challenge without letting it disrupt your calm,
• thus, I could say, “have a nonchalant ease, but don’t be nonchalant about the situation” - be concerned, care, but not troubled…