A MUTE PERSON GOES INTO A SHOP AND WANTS TO BUY A TOOTHBRUSH.
BY IMITATING THE ACTION OF BRUSHING HIS TEETH HE
SUCCESSFULLY EXPRESSES HIMSELF TO THE SHOPKEEPER AND THE PURCHASE IS DONE.
NEXT, A BLIND MAN COMES INTO THE SHOP WHO WANTS TO BUY A
PAIR OF SUNGLASSES; HOW DOES HE INDICATE WHAT HE WANTS?