Do not worry with thinking about whether you have made it clear that you are listening. Listen to the words as well as gestures and emotions. Try to see things from the others' perspective.
Make sure that you understand well
Learn to repeat and summarize what you have heard. Use the keywords that were said. Both of you will then be able to clarify that you understand each other well.
Ask questions
Ask open questions on the topic. it will allow your people to found their own answers. You will show that you believe in them and strengthen their confidence.
Provide feedback
The feedback from your mouth may be negative. However, it must be clear, relevant, non-judgmental, supportive and offer a positive outcome in the future.
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