Unlike the traditional Chinese culture of being subtle and introverted, it is never shameful to like someone and show yourself as generously as a peacock. On the contrary, the kind of cowering to hide your feelings is not necessarily elegant, but sometimes it's a constraint and a mistake. Attraction isn't about guessing, it's about honesty. Of course, maintaining a sense of boundaries is equally important. It's not about being deliberately formal, nor is it about social bombardment in a "spicy voice". Natural, comfortable, polite, warm, so that people want to get close. If you make an effort to get closer and you get "no reaction, slow, no feeling" type of responses, then that's it, next. Learn to understand that there is no reason or why. You can look forward to the unknown of her in your future life, she can be cute, funny, sexy, charming character. Why I know this so well is a gift of time and experience.