U can clearly see the matthew perry was not that into as he knows that its all fake .
No one is in touch and no one cares.
Anyone can see pain in his eyes and expressions.
Instead they should have let or made this reunion to share their experinec and for example how matthew get out of his addiction to drugs, could be a lesson and a small skid or epiaode would have been great!
Mathew aka chandler should have given more space or light , the david one who talked and matt.