His expression, his walking posture and all his mannerisms. I don't think he has such a personality in reality, but it's perfect that he can act like this.
Although I have never met a kid like Duncan in my life, I understand what he is talking about. Such children are actually very pitiful, but there are always people who like to tease and tease them. Just because they behave and think differently from them, they regard him as an outlier. In fact, Duncan is too kind, too simple. In fact, he is the purest. But it is not suitable for such an environment, that environment is dirtier than him.
ps
Someone called him a faggt, but he said he was not. Is he really? Even with just one sex? In fact, he feels that he is a girl (I don't think he is a transvestite), and his psychological gender and physical gender are somewhat misaligned, maybe. So he thinks it's normal for him (as a girl) to like boys, he's not gay.
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