Yuki was never a mind reader. He didn't even know what he was thinking sometimes, let alone what was inside the other people's heads. However, just for this time, he activated every single cell inside his brain to concentrate himself into one player, trying to see whether he could read the other's mind or not. And that player was of course Hirano, the middle blocker of the team.
It seemed wrong though, to say he wanted to read Hirano's mind. No, what Yuki wanted to do currently was to see every tiny detail of Hirano's body movement, trying to predict where the blocker would go and what wanted to do. He wanted to see whether the connection he felt before when the collision happened was real or just his imagination.
'Come on, Senpai… Let me prove this… Come on…'