How to observe opponents while multitabling?

[Indiana]

I saw that Newt made a comment about observing while playing 8 tables and I just don't find myself able to do that. When I play 2-4 tables I am basically just playing without reads, making pushes with "artificial" ranges on my opponents and such. I can easily CRUSH the $33s on party if I only play one at a time, but I really don't make much money when I play 2-4 because all the genius of my game goes right out the window when I don't carefully observe my opponents.

Do most players actually find it possible to carefully observe their opponents while playing so many tables? I also find it very tiring and uninteresting to multitable, but that's another topic.

Indy