Tipping is an important part of the service industry in the United States. You are generally expected to tip people who do a service for you (waiters, hairdressers, bartenders, taxi drivers, etc.).
Restaurants: 15-20% of the entire bill
Bartenders: $1-2 per drink if you order separately or 15-20% of the entire bill
Taxi drivers: 15% of the fare
Hairdressers: 15-20% of the cost
Pizza delivery: 10% of the entire bill
Take-out food: No obligation
Tip jar at coffee shop: No obligation
There are a number of on-campus dining options, including two dining halls, two full-service restaurants, a food court in the Stamp Student Union, the Maryland Co-Op (providing vegetarian and other healthy options), and several cafes and coffee shops.
College Park Dining
There are a number of restaurants within walking distance of the University of Maryland. Most of them are located just south of campus on Route 1 (Baltimore Avenue). The following website highlights these and other restaurants in College Park.
DC Metro Area Dining
The DC Metro area, including Washington DC as well as suburban Maryland and Virginia, offers a very wide variety of dining experiences. The Washington Post's online CityGuide provides useful information about the many dining option in the DC area. Additionally, the online Washington CityPaper offers a searchable guide to Washington-area restaurants: The online Washingtonian also provides a searchable dining guide.