Learning is very important to me, and it will be a deal breaker if you don't enjoy learning new things. It doesn't have to be academic learning, that would be a bit pretentious. As a side note, I'm a more visual learner, so don't be surprised if I jot important things down.
I'm a dyed-in-the-wool introvert. I can (and will if asked nicely) deal with being around large groups. But the louder and more gregarious the group, the more exhausted I will be at the end and the more time I'll need to recharge.
I'm all for the environment, but I won't set your SUV on fire. I will however side with wild animals over jobs almost every time.