Easy: my mortality. The gift of death awaits me, and if it didn't, I could not do this. But now I'm looking at this aspect of my existence and thinking that it is not so much a trait of my character, but more of a character of the existential reality of the being of all human beings. I guess a trait of my character would be less universal. I don't know, maybe my intelligence, except that its only remarkable as a comparative measure. In the first person experience of being, I have full access to every idiotic thought and thing I do. I am an idiot, not compared to other clothed primates - obviously, but in and of my self (in itself). An idiot, and an asshole too. Okay, okay....I've got it, final answer here: my honesty! I'm extraordinarily honest, especially with myself. In fact, you can be sure I'm not lying so long as you are not the cops or a judge, who have us all as forced players in their silly game, the rules of which I have never agreed to, and they lie constantly so that not to lie where it benefits you, where nobody has the proof, would be foolish - like not taking $200 as you pass go. Not my rules (I did not come up with any of it!), and should that game ever finally be abolished I would complete my total rejection of dissimulation. Yup - without this peculiar and appealing-to-me honesty, I would not be able to continue living in this meat-suit at all.