As a western woman, I can say these signs ring quite true for Taiwanese men too. When I arrived I didn’t fancy my chances, in fact I prepared for a year of single-dom, however, I’ve found this hasn’t been the case.
From my understanding… If they’re not interested, they’ll ignore you, turn down suggestions, be fairly cold when I talk to them etc.
There are many Taiwanese who see me and are interested in the exoticness of a westerner. They might just want to talk to you so they can boast to their friends, or merely out of curiosity. I spend a lot of time trying to convince random people I’m not special for that reason and that I really don’t want that attention.
If they make a point of talking to you, make excuses to touch you (learning each others language with eachother seems to present these opportunities - demonstrating a word by touching the other person.) Arrange or encourage further time together (especially if alone) then yes, they want things to develop.
If they are very touchy feely, but aren’t keen on introducing you to the family, or even their friends, you’re just a bit of fun, they don’t consider you a long term prospect. If they introduce you to their friends or family, they’re more serious about you.
bringing up the topic of past relationships, attitude to love/sex etc also seems to happen, and I guess is a way to find out if you’re on the same page.
My advice then, is to encourage anything which you mutually like, don’t do anything either of you don’t want, have fun, enjoy the mutual feelings and deal with any differences of expectation as you see them arise
Just dont let her ever take up taekwondo.
( unless its a smurf post 
)