FlyBy is always here to alert you when there’s a chance to grab free food in the Square. Tonight’s hot giveaway is free milkshakes at b. good, in honor of the 22nd birthday of Samuel B. Novey ’11, also known as Burgerman.

In April, Novey will be running the Boston Marathon dressed in a burger suit. As he prepares for this endeavor, he’s asking community members and businesses to contribute to Citizen Schools, a charity that brings volunteers to teach a second shift of educational material after school in middle schools nationwide. In the months leading up to the marathon, Burgerman has planned plenty of publicity stunts to drum up donations—he’s hoping for 1,000 new small donors in the next two weeks, with an ultimate goal of $100,000 in contributions.

And if you haven't noticed, most of his fundraising efforts seem to involve free b.good food. Stop by between 10 and 11 p.m. tonight to wish Burgerman a happy birthday and claim your free shake!