The Advantage of Hands On Marketing

People like hands on stuff. Look at the Nook vs. the Kindle. You can go to your local Barnes and Noble and try the Nook out. But you have to buy the Kindle on faith. Give the customer a taste, and he's far more likely to crave your product in the future. Just look at Edmund in "The Chronicles of Narnia." He really liked his sweets, didn't he?

What have you done to make your company or product more hands on and interactive? Are samples as effective as they seem?