一直表达真实的意见
Well, from my point of view, I believe it is necessary for everyone to always remain honest. Here are my reasons.
Firstly, being honest is the most fundamental and essential foundation in the interpersonal communication. If you are exposed once for not telling the truth, then you will lose your reputation, what’s worse is that you will lose the chance to make new friends forever. Secondly, of course, the truth might be harmful, but I still believe it is necessary to make it known to everyone. If you tell a lie, what you have to do next is to find another lie to cover the first one, some times later, you will feel tired, which is harmful to your mental health.