Rule Number 4- Keep your friends in very well organized categories.

You may be wondering how keeping your friends in well organized categories will help you be a more optimistic or nice person. Well it may seem minor but this is a very important rule. First of all, this rule makes following rule number 1 possible.  If you skip rule number 4, you will find yourself knee deep in conflict. Because, it is unlikely that all of your friends will like each other. This seems odd because they are all friends with you. So if you get along, why shouldn't they?  It has to do with physics, long drawn out theories of friction and I am pretty sure the theory of relativity. Don't ponder this too much or your head will explode. Just accept it and move on. The same way you accept gravity or expiry dates on milk. You can't prove it and it defies logic but its truth remains. 
Second of all, this rule helps you follow rule number two. Because following rule number 2 requires thought about who you share your opinion with (more specifics of this to come in later rules).  
 I have provided you with a list here but you may need to modify it based on your individual circumstances.  

1. Friends who you can say anything to.

2. Friends you can say some things to.

3. Friends with whom you need to pretend you don't speak very good English. (This works particularly well for me, as I live in a country where I am the one with an accent. This allows me to assume the best about someone when I think they may have said something very mean. I just blame it on their accent and move on. Thus, successfully following rule number 1. If you are not a foreigner where you live, it will be much harder to explain away other's meanness. Perhaps you could try reorganizing their words into a different order? Or you could blame it on not being up to date with the colloquialisms of the day. Because let's face it, we have all been a bit behind, cool became fat or phat or whatever. So you can never really be sure if someone is being mean or if you just missed the memo on the changed word meaning. 

4. Friends with whom you should never have anything to say, about any subject, at any time.  This may seem difficult, so here is what I suggest: When enjoying this friends company all you have to do is put all of your opinions out of your mind  Then, if at some point, this friend asks you for your opinion, it is best to quote a line from a movie such as "I said a dozen cookie robots not... arg. Why...why are you so old?" then laugh loudly. Or  "When in Rome..." or "Yes. I am relieved to know I am not a golum." or "You can't fight in here! This is the war room!" or "I am not a smart man but I know what love is" or "Gentlemen, I may not have a brain but I have a plan." This, hopefully, will get them laughing, talking about the film and possibly a lively round of quote battling. A warning here though, because some movie quotes can get you into much worse trouble like "You can't handle the truth!" or "I wish I could quit you." or "Think McFly, think!"

Remember, you should try to  keep these friend categories separate.  You need to know, if you do mix them, they may start sharing information about you. The category 1 friends  might tell the category 4 friends that you do have an opinion and then they will march over to you and demand your opinion right then and there.

This is a level 6 breach and requires immediate retreat. Yes, even if they are all at your house and you are cooking for them - just run out the door and down the street. (You should run practice drills of a level 6 breach with your spouse so your house doesn't burn down. I recommend a monthly drill.)  

SKIP THIS IF YOU TALK IN MOVIES (because this is clearly in violation of rule number 2)

As a side note about friends and movies, try to avoid going to the movies with friends who like to talk. You will have to suppress the urge to punch them in the throat. Now this is a very scary feeling for an optimist/nice person because we are generally non-violent. If you must take the talker to a movie (because you love them and you like spending time with them and they may eventually suggest you go see a movie), make sure to see it first, enjoy it, absorb it, study it and then you are ready to sit back and have the experience ruined. Also, you are then very well prepared for their questions. When they say "Who is that?" you can say with confidence. "That is the villain. He is going to kill her soon!" You will not only impress them but make them happy and then you are back on track to remaining an optimist/nice person.