In the second area, put the fire out which makes a monster appear, use the punch command a few times to kill the monster which will make its eye fall out unlocking the Eye Pop Trophy / Achievement
Interact with the bucket, pick it up and place it at the far end of the hallway in front of the locked door, afterwards, pick up the eyeball, walk up to the bucket, take 3 steps back and throw the eye ball into the bucket which will unlock the Two Points Trophy / Achievement
Take the eye ball out of the bucket, go as far back as you can, all the way to the sink then throw the eye ball into the bucket again, this might take a couple of tries but it’s simple enough.
Once the eye ball has landed in the bucket, your Trophy Achievement will unlock