The greater Lafayette area is home to many interesting places and organizations. You could spend an afternoon visiting a museum, attending a performance, or just lazing around one of the many parks in the area.
There are a number of movie theaters in Lafayette, as well as the Wabash Landing 9 on the Levee by the river. A variety of groups sponsor movie series on campus, and there are a number of video rental stores around campus.
A number of local bars have dance floors and a few even bring in live music on occasion. The Boiler Room across from Chauncey Hill Mall is one bar that has featured live music in the past. One thing to be aware of is that the bar scene around campus is in constant flux with the bars changing names, management, and decor. So don't be surprised if your favorite campus music spot suddenly becomes a restaurant or the location of the newest set of student apartments.
The Knickerbocker Saloon, the oldest bar in the Hoosier state, has jazz or blues bands playing live almost every weekend. Usually, bands from Indianapolis and Cincinnati come into town and perform on Fridays and Saturdays. If you like import beer, they also hold the largest collection of import beer in Lafayette. The Knickerbocker is located at 113 N 5th Street in downtown Lafayette.
Each year the Department of Convocations brings a wide variety of musical entertainment to Purdue. Past performances have included operas and Broadway musicals. Several big-name entertainers (pop, rock, and jazz) appear in concert each semester under the sponsorship of the Student Concert Committee and the Department of Convocations. Check out their website at (http://www.purdue.edu/convos/) or the box office in Stewart Center for information on upcoming events.
Some of the coffee shops near campus, notably Cafe Vienna in the Village, host live music from time to time.