2. Say “exactly” what you mean
I think people would be happier if they told each other the truth. I totally understand that you sometimes have to adjust the truth and sometimes even tell a “white lie” but I try do avoid it as much as possible. If someone asks me what I think about something I tell them what I think, not what they want to hear. Sometimes it may be harsh but in the long run it’s a lot better in my opinion.
Things also gets a lot easier if you’re not afraid to say what you mean or ask what you want to know. Don’t for a moment think that people will understand you if you’re vague and don’t say exactly what you mean. People will get confused and draw their own conclusions which is probably the opposite to what you mean. I can be vague sometimes but I try my hardest not to, and I practice almost everyday!