What is the most important thing to you in the world why?

hello everyone,I am very pleased to have a speech for you.There is always a most important thing in our mind which possibly make an impact on your life and behavior.so do I.as for me.it's my good humor that is the most important thing. and it's convinced that the good humor is prerequisite of speaking with others well,supposed that you are in anger,bored or a bit nervous.are you able to just sit down with other people to talk about anything.when you are angry,bored and tense,there is a propoble result that you shout or cannot say anything to express your bad humor,which is very important to the speech I am making today.therefore why not have a good humor to enjoy your happiness around you and your friends.
good humor make your smile happier, enrich your life .through which you share your funny story with your friend ,that is when we have a good humor together. when you are happy, you must be more active and optimistic.Then how can we keep a good humor?that is neither easy nor difficult as you think.as a matter of fact,it's just smiling.maybe you are curious about that is
very easy?in fact,different smile makes difference when you are staying with the people.
just look for the smile,when you are angry; make smiling face as you are bored with something; if you are smiling ,then keep it,because that part in your lifetime is called "happiness" ,in the guide of smile.we are pursuiting our happiness.through the good humor .we give our bad mind away in to the sky,ground and anywhere but not other people.we are sharing our good humor!
I dad ever stayed with the children that always keep smiling,holding a not very funny toy.I just went to him and asked why you were so happy.there was an easy answer "I am happy".then he continued his playing.it drived me to smile.that is right ,it was so easy as the little toy in boy's hand.don't think over anything.just keep you smile to have a good humor.look for any
little things with you.that's what it does matter. so just smile inspite of any anger, boring and anything.
再问： 额…… 老师让我们这篇文章里面出现三级词汇，好像、没有吧…… 还是很谢谢你O(∩_∩)O！！！
再答： 没事,练练，不过我有个问题你说的三级词汇是专业的吗？