Improving my post-flop play

[ChuckyB]

I'm quite tight right now. I'm good with playing pre-flop. I want to get better at playing after the flop...Negreanu-ish if you will.

Does it require I get into more pots, to get the feel of if my 75s is in the lead?
Is focussing on my opponents' tactics when I'm out of the hand good enough?

I'm doing plenty of book-learning (I'm a little late in picking up SSHE, but I'm about to, along with HOH2).