Well I'm learning American Sign Language because I want teach and be interpret because in my opinion is a language more speak and can give me more opportunities than another with a lot of speakers but just spoken in one country ..."The American Sign Language (also known by the initials ASL) is the dominant sign language, through which the deaf in the United States, in places of expression Anglophone community Canada and parts of Mexico, communicates.
ASL is also used sometimes (usually in conjunction with indigenous sign languages) in the Philippines, Singapore, Hong Kong, Dominican Republic, Haiti, Puerto Rico, Côte d'Ivoire, Burkina Faso, Ghana, Togo, Benin, Nigeria , Chad, Gabon, Central African Republic, Mauritania, Kenya, Madagascar and Zimbabwe. Like other sign languages, its grammar and syntax are distinct from spoken languages. It is estimated that ASL is used by some 500 000 to 2 million deaf people in the U.S.