Which of Stephen's senses is most acute? Provide at least 5 examples from Chapter 1 of his heightened sense.

One example of acute sense can be found in Stephen's hearing;

He leaned his elbows on the table and shut and opened the flaps of his ears. Then he heard the noise of the refectory every time he opened the flaps of his ears. It made a roar like a train at night. And when he closed the flaps the roar was shut off like a train going into a tunnel. That night at Dalkey the train had roared like that and then, when it went into the tunnel, the roar stopped. He closed his eyes and the train went on, roaring and then stopping; roaring again, stopping.