Generally, one can promote and sell his or her books personally or at events. An example of today’s activities are comic cons where one can promote or sell his or her books.
Trying to keep your costs down when joining this kind of even, especially if you are still starting, is the first thing you should do, and one way is to get the cheapest table you can get hold on. Some can also share a table with another author if they are also interested in selling his or her books.
Note that there are manners of maximizing sales if you are already an established author.
The number one thing you can do is to have a one-sentence pitch that summarizes up your book. Avoid confusing people with your complicated or intricate plot.
If you can make some noise, then make that as your move. If you have an aggressive personality, like standing in front of your table and be able to hand the book to the passersby, and make some controversial or new message about the story, then do it.
The next thing on how to sell more of your books is by drawing people with your irresistible offer, and for those will not so sales-oriented personality, you can give away pens, bookmarks, and so on, unless you have a free print to give away. As you offer something for free, it is best that you are their eye level, standing and not sitting behind your table.
You next strategy is to have one book to push in order to get that sale. Be aware of the experience that more items equals more distractions.
Another good idea to sell more of your books is to upsell, meaning you can push one book but make a good offer if people are buying more than one or a bundle of your books.
Another thing you can do is to promote your appearance at the event and have fun while getting many interests of your books. The event can also be used as your promotional activity where you can announce about your books to your fans, to media contacts and to potential fans of your work. Go ahead smile and have even if your sales have not yet reached your target or if foot traffic is low, because people have the tendency to buy from those who are smiling rather than those who are grumbling behind their desks.
Another way to create interest and sales of the book you are pushing is to dress up as the favorite character in the book, excluding one that will frighten people away, especially in fun places like in the comic cons.