This Friday is National Groundhog Job Shadow Day (NGJSD), a national campaign that gives college students a chance to learn about many industries, including the hospitality industry.

The event is a joint effort of America’s Promise-Alliance for Youth, Junior Achievement and the U.S. Department of Labor. Nationwide, more than 1 million students and 1,000 businesses participate.

Last year, more than 20,000 students spent the day in hotels and restaurants, according to the American Hotel & Lodging Association (AHLA). So if you see bright, shiny, intense new faces where you’re staying or dining, they might just be “shadows” in disguise or your future colleagues.