[header] How to make fun of others [title] Be sarcastic. [step] Nothing cuts to it quicker than a good sarcastic tone of voice. Using sarcasm implies that the other person is stupid just for asking a reasonable question, and it's usually pretty easy to pull off every now and then. 
It's a funny and light way to make fun of someone. [substeps] Say the opposite of what you mean when someone asks you a specific question: " yeah, i aced that test.