The first week is the most crucial time for your campaign. You will need to make sure your campaign doesn't lose its momentum. Keep track of your strategies, based on funder activity, and you will know if there is anything you need to change the way you're promoting your campaign. Eg., are email reminders working better, did your Facebook post get enough traction, or are personal calls more effective.
Also keep in mind that you need to achieve a ballpark of 30%-50 % of the target goal from your inner circle itself. This is the time to contact and push your close friends, well-wishers & family to help you achieve your goal.
Towards the end of your campaign, get the crowd excited enough to fuel your crowdfunding campaign to the finish line! This sense of urgency will drive the crowd to contribute towards the campaign's success.
Some of your early funders may even come back to bridge the last 10% of your campaign goal.
Thank your contributors individually via a thank you email.