Final answer:
Fingerspelling is not a substitute for signs, it is a component of sign language that represents letters of the alphabet.
Step-by-step explanation:
Fingerspelling is a substitute for signs that you don't know. False.
Nonverbal communication includes gestures and body language, which are forms of communication that do not involve spoken words. Fingerspelling is a component of sign language, where specific handshapes represent letters of the alphabet. It is used to spell out words or convey specific names or terms that may not have a sign.