Hãy quyết đoán. Tích cực lắng nghe. Xin lỗi. Cam kết thực hiện thay đổi tích cực.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Using assertive communication skills means saying how you think and feel in a respectful and appropriate way. When you are assertive, you admit when you are wrong and take ownership of your personal faults. You do not blame others for your mistakes.  Avoid passivity, which involves avoiding talking about it, hiding, going along with what everyone wants you to do, and not standing up for yourself. Do not be aggressive, including: raising your voice, yelling, belittling, cursing, and violent behav