Teach your baby the sign for the word noise in baby sign language with the following description and video.
Touch the ear with an index handshape. Then form both hands into fists. Hold the fists in front of the chest and rotate outwards three times.
Porpora, Tracey. 2011. The complete guide to baby sign language: 101 trips and tricks every parent needs to know. Ocala, FL: Atlantic Publishing Group, Inc.