Use duct tape to tape stick to the back Make letters and arrow with duct tape, or find markers.
day with no rain! a weekend from morning to afternoon (more time to let people buy your stuff) not too hot, not too cold. (if it’s hot sell drinks also. . . . more money)
a small fold up table and chair will work
books go with books, shoes go with shoes. Put everything that is the same close to each other so it’s easier to find others double check everything is priced