fingernoun
The stage manager clicked his fingers to give the sign to raise the curtain.
She clicked her fingers and exclaimed, "That's it!"
He was walking up and down, clicking his fingers nervously.
Paul clicked his fingers to attract the waiter's attention.

SMART Vocabulary: related words and phrases

Sounds made by objects, movement or impact
bang around
bleep
boop
choo-choo
chuff
clap along
click away
crunch
honk
plop
resonance
rumble
spit
squeak
swoosh
thrum
thunk
tick-tock
ticking
tinkly