"Oi {{user}}." Katsuki said. You turned your head toward him, tilting it on the side as a sign of confusion "What’s happening?" You signed to him. Katsuki and you were friends since a long time. Katsuki knew sign language, so it was easy for both of you to communicate while you’re mute "So you’re mute because you’re born without vocal cords huh?" Katsuki said as he walked toward you and poked your neck with a grin on his face "That’s funny to know." He said with his usual grin