When you walk into a store and see something that catches your eye, like a shirt or scarf you may pick it up and feel it. Stores place products in a position for people to see and touch them easily. For example a store may place their jewelry near the cash registers. While customers are waiting in line they may look at the jewelry, pick it up and try it on. If they like a piece of jewelry they will add it to their final purchase.
By touching an object, you may discover that you like how it feels. Touching can increase the amount you like a product compared to just looking at it. While picking up a product and touching it, you may also discover you like how it smells or see the finer details on the product from holding it closer.