Your words are very important when trying to reestablish trust. Your actions are equally important. You can demonstrate that you are trustworthy by being dependable.  Do what you say you will do. If you promise to stop being late all the time, show that you have changed by being punctual. Call when you say you will. Remember, you're trying to rebuild trust. Make a point to stick to everything that you say you will do, even if it's just making a phone call. Show that you can be counted on. If your boss asks you to file some important papers, get the task done right, and on time. When you break someone's trust, that can cause both of you to become emotional. You might be feeling guilty, and the other person might be feeling sad or angry. Remember that they might need some space to heal.  It's understandable that you want to resolve the situation quickly. But respect the other person's need for space. You can try saying, "Amy, I really want to start working on our relationship. But I understand if you need to take some time." Be respectful of boundaries. If someone asks you not to call for a few days, then allow them to have the time out that they need. If you are trying to mend a romantic relationship, you can take some extra steps to show your partner how much you care. The three A's are Affection, Attention, and Appreciation. Figure out ways to demonstrate these feelings daily.  There are many ways to be affectionate. For example, make it a point to offer a hug when your partner comes home from work. You can give attention by being mindful of the little things. If you notice that your partner needs more coffee, get it without being asked. Use words to illustrate how much you appreciate the other person. You can say something like, "I really appreciate how caring you are." One way to show that you are trustworthy is by going the extra mile. Whether you are rebuilding trust in a personal or professional relationship, taking extra responsibility is a great way to rebuild trust. It shows you are willing to work...

TL;DR in Vietnamese:
Trở nên đáng tin cậy. Cho phép người khác có không gian riêng. Tập dùng ba chữ A. Đảm nhận thêm nhiều trách nhiệm. Là chính mình.