You can hang items on a fence or place them along your driveway. Put books, binding up, in cardboard boxes. If you or a friend have a knack for displaying items, use it to your advantage. If you have toys for sale, put them in a box on the ground for children to play with. This keeps children busy and also helps sell the toys.
Some people pick up toys at other sales to have on hand to keep children occupied.
Be sure they are priced. Front Sit at the front of your property with the cash box so people will have to walk past you to leave. This will prevent thefts. Have helpers watch so items don't walk off. Place items such as jewelry near the cashier or on the cashier's table.