I think the way that they will not make me angry is that it is not contrary to speak your mind friend. Don't say bad things or friends is not as the truth and talk to friends with reason and reasoning in solving a problem do not use emotion to resolve the problem.
I think the way that will not make me angry. The things that do not offend friends I do not say bad things or not true. Talk to friends and rationally. And use reason to solve problems using emotions to solve problems.
I think of how not to make a friend is angry with me. That does not speak against friends. Don't say bad friends or true. And talk with friends, rationally. And reason in the solution is not used in problem solving.