whats it called when tu visit sick kids in the hospital?

like when tu visit people,and kids in the hospital and tu come to cheer them up just por visiting tu put a smile on their face,i have always wanted to visit the sick but idk how to do it,the reason why is bcus i was insipered when i was little like about 4 o 5 i was in the hospital for about 1-2 weeks and i made friends their that were really sick and it herts me to look back and see how sick they were :( and i know i didnt want to be in the hospital 4 about 2 weeks and i know they didnt either so i really want to make them happy thats what i always wanted to do ever since i was in the hospital it has inspired me SOOOOOOOO... much i really want to help the poor and the sick,please help me cus i want to go visit :(