At the last supper why is everyone facing the same way?

Question

At the last supper why is everyone facing the same way?

Answer 1

All but two persons face the same way in the painting or mural because they sat along the same longest side of the table. The other two sat at the ends of the table probably because they were of higher order within the disciples, while jesus sat in the centre as the main participant, but also there because he was facing impending death as it was decided that he had transgressed a law or rule. The person with his finger pointing up is said to be Paul.

Answer 2

COme on now, that is so obvious.  No one sat in the other side of the table, because there weren't any chairs over there.....  duh!