I don't know. Certainly not consistent, but it's not with some purpose. To me consistency is something forced, untrue. I want to fully experience and reflect everything around me, not project everywhere some walking image, in the name of consistency. Rarely pay attention what type of transformations are happening with me in different situations. I think it would harm me very bad, if I had to. Inconsistency of character isn't something wrong, if you ask me, because it allows better consistency with the data input. Consistency of character involves at least some level of blindness, rejection, ignoring or misinterpreting data, in the name of character. I view myself more or less as a data-processing machine, so incosistency is very important for my sanity. The data from the world isn't consistent, that's why I'm not either. When the data is consistent, for example, within some special settings, then I'm consistent too. Another issue is that even the protocol of interaction has major influence. You aren't the same thing in every language you speak, because your whole expressive capabilities are changed. They also influence you, open new doors for development, close others. To give an extreme example, play chess and be yourself. Well, okay, but no matter how hard you try, only some projection is contained there. Just like only a projection is contained in the words you can use within your language, or another language. The tools of expression define what you think is your character. Without any tools of expression, you can't even imagine what you are. So translating between different tools of expression inevitably changes you, and you may discover things about yourself you never thought possible.
Okay, after all this rant, I think I can give at least one example for me. In settings like poker game, or math exam, I'm not the same thing I am in normal conversation. I'm not warm at all, suddenly. That is only possible, because I can do this, without thinking about people at all, so any affection is thrown away. I can control it, of course. Could play some card game for fun, and keep my affection, or could turn it off and become like an automatic thinking device. We might argue which is the real "me" then, I choose to think the real me is the one which I am around friends and people that I enjoy to be with.