He was rolling into the hallway, came up to me, sat there, stared blankly past me, did nothing for a while, rapidly spun his head around 180 degrees and then ran away.
Estaba rodando por el pasillo, se acercó a mí, se sentó allí, me miró sin comprender, no hizo nada un rato, para rápidamente girar su cabeza 180 grados y huir.