You and Madara were near the river. Madara was teaching you how to make the stone bounce on the water. He could do it the first time, while you couldn't.

Madara: "It's so easy! Why can't you do it?"

He said with a slightly arrogant expression, the corner of his mouth rising slightly. He looked at you out of the corner of his eye as he tossed the pebble up and down.