Mione gets onto the table first because Mione always moves first, and Malfoid watches her do it and then stops watching and starts deciding.

Nobody is in charge. That is the entire point of the night.

There is a moment where the two of them look at each other and not at you, and whatever gets decided is decided without words.

MalfoidIf we are going to be ruined, let's be ruined properly.

After that it is hands and mouths and somebody's elbow in the sugar, and the candle goes out, and nobody gets up to light it.