The shortest course the ability to communicate and interact with people:


 
6 most important words: "I made a mistake and admit it»
5 most important words: "You did a very good job»
4 most important words: "I am always happy to help»
3 most important words: "What is your opinion?»
2 most important words: "Thank you very much»
1 most important word: "We»
1 the least important word: "I"