Oh, I thought this was going to be about physical features. Apparently there's some phenomenon where, because we only see ourselves in mirrors (and hence a mirror-image of ourselves...well, obviously), when we see what we actually look like non-mirror-imaged...for example, in pictures...we look different from how we perceive ourselves. I have also read that the overwhelming majority of people perceive themselves as physically more attractive than they are, but I can't remember why that is. I think it is something to the effect of: we "see" ourselves including how we feel inside, which is rich and well-rounded and is probably quite lovely in its way, but those qualities are not actually physically visible to others, when empirically assessing "beauty."
Also, we may look very different in still photos not only because of the non-mirror-image effect but because when we're going about our daily lives, we are generally in constant motion - even if we're sitting very still, our eyes are blinking, jaws clenching and unclenching, and so on, whereas a picture captures an artificially stilled presence. For some people that means they may be photogenically much more "beautiful" than standing face-to-face, and in some other people it means the opposite, hence people who look quite nice but seem to always look awful in pictures.
Anyway, no, I don't look - from facial movements, posture, and so on - the way I think I do, or feel like I do. When I've seen myself in videos, I've been shocked. I hardly move my mouth at all when I speak and when I laugh I don't really lift the corners of my mouth. It is very odd.
My posture is also different than I think it looks, and the way I hold my hands.
At this point in my life I figure, tough. I'm not entering any beauty pageants and am not warming up for a celebrity photo shoot some time soon so I'm good.
People are going to see me as a bit odd no matter what. I don't flaunt that - at all - but neither do I let it get me down.