Execution: One sure-fire way to lose respect of the customer is to fail to execute. Always do what you say will you do, when you say you will do it. As mentioned above, mess this up once and you’ve lost the game. For that reason, it is very important that you are realistic about what you say you will do and when you will do it. Set yourself up for this, you are in control of the expectation and the execution. If you have a perfect track record of execution, the customer won’t have a reason to question your plan.
Method 2: Communication The what, when, and how of communication can really make a difference in projects. Separate customers will react in different ways to your communication methods. For example, one might prefer a regular status update in e-mail while another one expects to view a milestone report with a summary of weekly achievements.