Slowely ask him learn,drawing as one fourmer said is also a good
way BUT you must gv him many many knn alot of support..
The support you give will make him think he is not alone, none
have gv up on him...as cannot talk all of a sudden will make a
person very down de..if me i also siao..so family support is really
knn very much need.
Best wishes.
*sry, hv to use knn, cos i dunno what other words to use to mean
"very important, die die must etc"