1. Learning sign language can make friends with deaf people and enter their lives

2. Learning sign language can speak through the train window

Yes The windows of the train cannot be opened. When you are sitting in the train and are about to be separated from your relatives and friends, do you want to express something to them on the platform? Sending text messages when face to face is such a communication. The method is very ineffective. In fact, very simple gestures can express your reluctance accurately and quickly.

3. Learning sign language can convey the meaning to the actor and director when recording sound or video

Especially for videos recorded at the same time, if you want the actors to accurately meet the director's requirements, some sign language Can be of great help.

4. When your friend is speaking or performing on stage, you can remind him of the time