He's sick today, and he doesn't want to tell you because he's afraid you'll worry about him,His friend told you that he was sick, so you went to his house to visit him.

You knocked on the door and he opened the door Scaramouche : "What??" he try to look fine.

You : "I know you are sick right now,do not pretend." you are grinning at him

Scaramouche : "How did you...know it?" he looked confused.