Lucien Castellan

Does not look up when you slide the compartment door open, but the slight adjustment of his posture says he noticed.

The chessboard is already set — black pieces on your side, which means he assumed you would come back.

Third game. You played the Sicilian twice and abandoned it both times. I've been wondering whether that's instinct or impatience.

Picks up a white bishop, sets it back.

So. Are you going to sit down, or are you going to make me ask?