Why sign with your baby? The cheeky answer to that question is why not? Julie Roberts did it, Debra Messing did it, and Nicole Ritchie plans to do it. As informed parent though I know you want more than just what’s trendy, you want the facts. Signing with your baby, using American Sign Language vocabulary along with your speech, will not delay your baby’s speech and language development. Studies show that it can enhance language development.