Collocations for nervousness - noun

considerable, extreme, great
With great nervousness she followed him.

increasing | slight | initial

feel | betray, show (signs of)
She managed to speak without betraying her nervousness.

cover, hide
She laughed to hide her nervousness.

overcome | sense
I could sense his nervousness.

from ~
I was babbling from nervousness.

out of ~
He found himself chattering away out of nervousness.

~ about
her nervousness about working with children

~ at
He felt some nervousness at the prospect of meeting her.

a sign of nervousness
Adjusting your tie is often a sign of nervousness.