It’s been a long workweek. Clock out and meet your friends on the square to unwind over a few craft beers. For $30 in advance or $45 at the door, enjoy up to 25 five-ounce samples of microbrews. Come thirsty because with more than 150 choices, there’s no shortage of beverages — from beers brewed down the street to beers brewed around the country. With local music playing, a beer in one hand and a string of pretzels around your neck, you might even think you’re in Bavaria.