A panel at the upcoming Inside Social Apps 2013 conference will examine the impact of real-world incentives to boost Facebook like totals and application installs. How about this for a real-world incentive: a can of Pepsi?

Pepsi used a recent concert in Antwerp, Belgium, by Beyoncé to debut its Pepsi Like Machine, which dispenses a can of Pepsi or the Pepsi product of the user’s choice after he or she likes the beverage maker’s Facebook page.

Here’s how it works, as reported by Mashable: Facebook users can either like the Pepsi page on their mobile devices or use a touch screen on the machine to do so, after which they are rewarded with a free beverage of their choice.

The description of the YouTube video for the Pepsi Like Machine reads:

Pepsi wanted to create a new way of sampling — an easy way to engage with consumers and know who is liking and drinking our product at the same time. That’s why we created the Pepsi Like Machine. And guess what … people really liked it. First test was at the 2013 Beyoncé concert in Antwerp. Live for now.

Readers: Can you think of more ways for brands to provide instant gratification in return for likes?