Daniel, it's dinnertime. Please wash your hands. When you are making requests, be specific. Your child wants to please you. But he still often needs to be reminded of what actions to take.
Specific information helps.
Better yet, show your child what you want him to do. For example, help him put the toys back in the toy box. Make important demands respectfully, but firmly. However, to young children, these messages suggest that they have a choice of coming in for lunch or not. This is a direct request given in a respectful way.