For me,
Respond promptly to every question and in a professional manner without dodging issues. Prove that you are who you say you are. Make yourself available in multiple mediums (forum, dashcentral, slack, even phone/skype) to converse with MNOs. Demonstrate that you are familiar with Dash and know what you are talking about. Investigate if there are any potential deal sweeteners that you would be willing to accommodate. And most importantly of course being able to articulate well the value add that you will bring to the project!