How to avoid an argument

-Make sure the points made are valid (preventing it from escalating) 

-If proven wrong, just accept it (prevent it from becoming a fruitless relationship-damaging episode) 

-Stay calm, emotions can cloud judgement (avoids both the argument and the escalation of the argument) 

-Don't let trivial things cause anger (avoids both the argument and escalation) 

The first step in understanding how to do something is to analyze it, breaking it down into it's constituent parts. In this particular situation, the first step would be to define an argument. In the most basic and general sense, an argument is simply a clashing of opinions or a disagreement between two parties. There are several ways to avoid such an occurence, some more practical than others.

Arguments usually consist of two seperate parties, each believing themselves to be right concerning a certain subject. If hoping to avoid an argument, one should attempt to view a particular situation from the standpoint of the potentially opposing individual(s). Once this standpoint is clearly understood, it should be examined for weaknesses and, if any undisputable weakness is found, then the argument should be avoided simply by the overwhelming nature of fact. Sadly, this is not the way the world works and many times people will find it in their nature to argue against a completely valid point, perhaps hoping to preserve some sense of pride. By avoiding such a response, an argument of this sort can be avoided.

One should also strive to maintain a state of calm. A calm individual is less likely to react in a way conducive to arguments then is one powered by their emotions. Also, one should try not to allow themselves to direct their frustrations or anger from outside causes towards one particular person because that just never ends well.

One should also set values for themselves. There are certain things that really don't matter at all in the end, and such trivial things manage to make some people angry, and their anger may then lead to argumentation. Such things should just be accepted from time to time.

Arguments are just an attempt by the one to convince the other to adopt their opinion. Making valid points is always helpful in convincing someone, and remaining calm prevents an escalation of or into an argument which could easily lead to either party involved become more and more close minded and rather more willing to see the other suffer a wound to their pride by realizing that they are wrong rather than an attempt to persuade.

I'm sure there's alot more that can be said on that topic but I'm tired, sorry.