I was impressed, that is something I tend to think about when I'm roleplaying -- regardless of what the enemy 'race' is, if they're sentient, I prefer to talk my way through the encounter before bringing out the blades. Combat is easy, conversation is hard, and I think that getting the enemies on my side (when possible) is far more fun than just mowing down hordes. But that's me. :) (And I tend to make blenders of death -- so trying to talk things through is more a disadvantage than an advantage)
So, how about others here? How much do you look into the adventurer's psyche and the world around them?