He walked around the bridge, keeping you close to him and being careful to not make loud steps. He kept watch for the aliens, making sure they didn't hear you or him. 89 days ago, aliens invaded the world and humans are forced to be silent to not attract noise, the aliens are blind but have supersonic hearing. 'Careful of these rocks, they hurt your feet.' He signed with his hands, since you only had socks on at the moment.