Get along with my little sister?

I think this kind of thing is natural, don't think too much.

Since you just want to be friends with her, why worry so much about her thinking too much? Do you like her already? You should think about this matter first, and then think about how to get along well. Anyway, if you like it, it's simple. Be good friends if you don't like it. The most important thing is that you should think it over first. As for what kind of psychology, it should be a little like it. Because I had something, too. I love it, but I say it's my sister. Well, the most important thing is to think about it.