Chinese people do not ‘speak up.’
When I attended university in the US, I always heard people say Chinese students are quiet in class, and we were always asked to speak up. Having grown up in China, I can say that, in many circumstances, we just express our opinions differently.
Confucianism taught us a useful phrase “zhong yong”. Zhong means ‘no more, no less’; yong means ‘neither’ or ‘common’. We express ourselves rationally and courteously. We do not address problems directly, as it does not help to solve the issues in our social context. Yes, we seldom speak in class, talk in meetings, or protest in the streets; however, this does not mean we are afraid of ‘speaking up’.