Jose is good at making people laugh because is he witty; he is - quick-thinking, friendly, and talkative - which are all character-traits that allow him to have verbal, light humor. His outgoing and friendly personality makes him humorous and lives up the atmosphere, making people more prone to laugh at what he says. Also, imaginative and quick-thinking people are often good using figurative language - commonly used to add color to one’s words.
Hope that helps!