Do not use words that show that you're not sure what you're saying. These are terms such as "some", "kind of" and "sort of". Be as specific as possible.
5. Beware of the vague "but"
No employee should hear a phrase like: "Your work is good, but you should improve." This sounds as if you said he worked poorly. Instead, you should describe what specifically is good and what is bad.
6. Speak clearly
Articulate, speak slowly and loudly enough. When you hear repeated requests to repeat yourself, you probably mumble or can't control the volume of your voice. Your listeners start to feel your insecurity and arrogance.
7. Beware of words your listeners do not know
Limit jargon as much as possible. This is also an example of when a customer or employee does not understand you, you immediately begin to look arrogant and that you are wasting everyone's time.
8. Speak politely
Do not forget to say "thank you" and "please". Let others finish talking before you say what you think. Learn to listen actively.
-Kk-
Article source QuickBase Blog - The Fast Track - management blog