If anyone assumes I'm a Shinx in real life... they'd be correct!
On a more serious not, I think people misconceive my positivity/happy demeanour as being fake? Or that my positive words are just hollow? And that because of my happiness/good fortune I can't empathise with a terrible situation. Which bothers me a bit. I'm genuinely cheerful, and it's because I enjoy even the smallest good things in life! And sharing that makes me even happier, so it's constantly flowing. I've experienced some... highly traumatic times... many of which I continue to cope with on a regular basis. So I just hope nobody shrugs me off as being privileged and that's why I'm happy-go-lucky/seemingly naïve of the negative parts of life (I am so underprivileged it's kinda laughable). I understand what it is to go through hardship, yet I know how to be happy in spite of that.
Another thing (more so in real life), people will quickly dismiss me as slow-witted and dull because I'm quiet, antisocial and go my own way - I don't follow fads or anything. When I'm on my own or with my sister I'm a complete clown, a bundle of talkative energy, and I'll do crazy things - it just takes me being completely at ease around somebody to show the best side of me!
Oh! And many people assume I'm a prude, which I think is due to me being demisexual... I have to explain myself a lot on that one! @_@