I had expected the young actors to be very nervous before their first major performance, in front of many people;
however, I saw a group of them gathered a short time ago, and they actually appeared rather nonchalant.
"If you appear as nonchalant during your job interview, as you often do, here at school,
then you probably will not get the job, "
the teacher advised one of her students.
On the rare occasion when I appear nonchalant during discussions of sensitive topics, I am probably just biting my lip to avoid inciting or escalating tensions.