Signs for TAP
There are several ways of signing different concepts or meanings in sentences, sometimes requiring the use of classifiers (e.g. tapping one's foot).
Meaning: A device by which a flow of liquid or gas from a pipe or container can be controlled; faucet.
This sign is especially referring to an everyday water faucet, regardless of the changes of the modern faucet.
Related signs: FAUCET.
To connect a device to (a telephone) so that conversation can be listened to secretly; wiretap.
Related signs: OVERHEAR, MONITOR, BUG.
Meaning: To strike on one's shoulder with quick light blows. (Commonly used in Deaf culture to get attention in proximity.)
Meaning: (of foot) to gently strike on the surface with quick light blows.
(of foot/leg) to gently strike on the surface or ground with quick light blows.
Related signs: FIDGET.
Deaf Culture and tidbits
Handspeak's furry friends Kibe and Fritzy the Cats tap my arm or leg as if they were a human. Initially, Kibe's tapping confused me with that of my young daughter, quite momentarily scary when I was alone at home. Similar experiences with a few Deaf owners of some cats.
Youngster Fritzy initially meowed to me, later observed and learned from Kibe, and then started tapping me. Now she's really good at communication -- tapping me and then leading me to a spot for food, play, or message that Kibe is at the door outside.