I don`t think you don`t know much about him but there is a brief info about his character
— SpongeBob is a sea sponge, but he resembles a kitchen sponge. He typically wears a white shirt with a red tie and brown square trousers, hence his family name “SquarePants”. SpongeBob’s hobbies in the show include practicing karate, blowing bubbles, hanging out with his friends, and catching jellyfish. He attends Mrs. Puff’s Boating School, but has never passed; his lack of a driver’s license is a running joke in the series. He possess unstoppable optimism, and great kindness. Despite his usual stupidity, he has shown genius-level intellact on some occasions. He is always very friendly, and when he puts his mind to a task, literally nothing can stop him.
SpongeBob is a fry cook at the Krusty Krub restaurant. He lives with his pet snail Gary in a large pineapple-house on 124 Conch Street in fictional Bikini Bottom, which is located beneath the real tropical isle of Bikini Atoll. His neighbors are Squidward, who is a squid and SpongeBob’s co-worker at the Krusty Krab, and Patrick, a starfish who is SpongeBob’s best friend.—-
When I returned to home I decided to crochet an amigurumi SpongeBob. Hope you like it…