Where there are no customer opinions, backfill with yours. When a customer has a strong opinion on a topic try to yield to their desires. When the customer desires are not aligned with your agenda (best practices or efficient execution) then you must engage them in dialogue. That dialogue must always be grounded in respect for the customer’s point of view and focused on a mutually beneficial resolution focused on the goal not the execution (the what, and not the how).
Respect for Time: While keeping the customer involved, we never want to waste their time. Guide them to focus their attention on the important parts of the project and not the mundane details. Customer’s should be engaged in decisions about whether or not to do something but not necessarily about how exactly to do that thing. Customer’s should be appraised of the how, but in more of a review format to build buy-in for execution.