I have never really had the desire to overtly rebel; to represent myself as directly in opposition to authority or society. I do have opinions, approaches, interests that differ from social norms but it's not important to me to shout these from the roof tops or create discord just for the sake of asserting my individuality. If a value is directly violated and I find it would be wrong not to act or speak up, then I will do so; but if there is nothing immediately compelling or encouraging me to do so, I usually remain silent. My default mode is one of harmony and acceptance, and I only stray from this when I feel I need to.
I also consider myself and my views to be too complex and multifaceted to totally and unequivocally align with a single movement or group - never to disagree and always toe the line - even if that group is at odds with society. I suppose I would say I'm not enough of a fundamentalist about anything to be a true rebel. I try to remain open and receptive to a well reasoned argument; constantly revising and refining my beliefs if I feel that they are off base.
I certainly can imagine circumstances where I would rebel, but generally these hypothetical situations are extreme; activism, perhaps, would be the most likely form, but then I wouldn't really consider this to be rebelling per se.