- If they know sign language, hearing people can confidently interact with the hearing impaired in business, academic and social situations.
- Sign language can be a valuable tool in professions where verbal communication is difficult or impossible under certain circumstances. Firefighters and stock traders are notable examples.
- A hobby where speaking aloud is impossible or at cross-purposes can be enhanced by using sign language. Scuba divers, hunters and paintball "war game" players are examples of hobbyists who may benefit.
- As of May 2008, the U.S. Bureau of Labor Statistics reports that registered interpreters for the deaf earn from $17.53 to $54.50 per hour, depending on industry.
- Studies at California State University at Stanislaus and the Ohio State University claim that infants who are taught sign language develop spoken language skills earlier, have higher IQs and bond more closely with their primary caregiver. Although no definitive conclusions have been made, this research has spawned many "baby sign" companies that instruct parents on how to teach their babies to sign.










