How can I be a miss manners?

First of all, there must be innate external conditions, such as height (depending on what line of work you are engaged in) and appearance (at least with good facial features). To put it bluntly, without these external conditions, the idea is stifled.

With these, there are temperament, grace and conversation. Of course, the requirements of each industry or activity are not necessarily the same. But at least both. Temperament does not mean that you can have it immediately if you want to have it (just join the innate and get through directly). If you want to have an immediate effect, the most basic thing is to hold your head high, don't hunch over, and be in good shape. Of course, behave politely. Speak the most basic etiquette and always say thank you. It's better to be talented. If it is on campus, there should be no problem. If you are outside, you'd better get on well with the decision makers.

I hope I can help you!