Sign language is important as it's the main mode of communication of hearing impaired people. It's a fast and expressive way of communicating. Humans are social creatures and they have a need to communicate to each other.It allows us to communicate to the deaf and mute people.
Also in advertising,consumers are more likely to buy a product they have seen before or have heard about than a product they've never heard of. After seeing a sign, a consumer is more likely to remember
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