Don’t.

First of all, Chinese are not that well viewed abroad either, a lot of the Chinese tourists we get in Europe are the top earners kids and are entitled as fuck.

Secondly no one judges people from their country, sure there are a lot of obnoxious Americans and Chinese tourists, but I imagine that’s just survivor bias, you don’t notice the non obnoxious ones which I assume to be the majority.

Thirdly, and maybe most important, you won’t be able to do it. This question is proof that you think and act like an American, you have some ancestor who came from China so you think you’re Chinese-american, and that that somehow means you’re Chinese, but you grew in a different culture, eating different food, watching different TV shows, etc. In short, you are an American of Chinese ethnicity, you are not a Chinese who was born in America.

Do you want to know what’s one of THE most obnoxious bullshit American tourists do? Teaching Italians about Italy because they’re Italian-American, or thinking they know all about Ireland because the grandpa of their third-cousin once removed came from Ireland, so they’re Irish-American. Unless you spent a significant chunk of your life in China, especially during the formative years, you will not behave Chinese, you have an “Americanized” image of what a Chinese is, and at best you would have fooled someone who doesn’t care about your nationality as long as you treat them with respect. There’s a song that I think sums out this feeling https://www.youtube.com/watch?v=dq0_yCNSV-c it is a very common one, I’ve lived both in Italy and Ireland which is why I use them as examples, and every so often you’d get the X-American thinking they’re X, and you could tell them apart from across the street.