Keep in touch with your readers, fans, and the public who will support you and your work.
Promote every chance you see an opening; such as inviting people to your website, blog or Facebook. Be sure to place a Facebook badge on your website and blog. Add burbs about your book. Don't forget to throw in a little about yourself/journey. Don't be concerned when people comment that you are vain, egotistic or any of those other comment from naysayers.
Remember everyone who has a business, holding an event or anything else... promotes.