Babies can ask for things by asking for things that they want. Teach your baby the sign for the word want in baby sign language with the following description and video.
Want
Form the hands into claws. Hold the hands in front of the chest with the palms facing up. Pull the hands in towards the body while closing the claws into fists.
References
Beyer, Monica. 2006. Baby talk: A guide to using basic sign language to communicate with your baby. New York: Jeremy P. Tarcher/Penguin.
Author: Heather Johnson
Heather Johnson is a librarian, an amateur photographer, a wife, and a first time mother who is supported by her wonderful husband. She earned a BA in English studies with a minor in creative writing from Illinois State University in May 2007, an MS in library and information science from the University of Illinois at Urbana-Champaign in May 2009, and an MS in English studies with an emphasis in linguistics at Illinois State University in December 2011.