BOULDER, Colo. -- President Barack Obama has made an appearance in "The Buff," visiting a restaurant by that name in Colorado.

Obama was en route to a campaign speech in Boulder, home of University of Colorado buffaloes, when he interrupted dozens of customers having eggs and coffee.

Reporters heard Obama commenting on how good the food looked as he asked people about their lives.

One college student who was waiting for Obama to get to her table said, "I'm just so hungry."

Wait staff at the restaurant wore T-shirts that said "Eat In The Buff."

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  • Over 13,000 lined up to see President Barack Obama at the University of Colorado Boulder, Sunday, Sept. 2, 2012, in Boulder, Colo. (Andrea Rael, The Huffington Post).

  • Barack Obama

    President Barack Obama, right, and a little boy exchange looks to one another in the courtyard the Buff Restaurant, during an unscheduled stop to greet patrons as seen through a window, Sunday, Sept. 2, 2012, in Boulder, Colo. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama

    President Barack Obama is seen reflected in a wall mirror at Buff Restaurant as he greets patrons during an unscheduled stop, Sunday, Sept. 2, 2012, in Boulder, Colo. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama, Joseph Dorsey

    President Barack Obama, right, talks with Joseph Dorsey, center, as he greets patrons during an unscheduled stop at the Buff Restaurant, Sunday, Sept. 2, 2012, in Boulder, Colo. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama

    President Barack Obama, right, greets patrons during an unscheduled stop at the Buff Restaurant, Sunday, Sept. 2, 2012, in Boulder, Colo. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama

    President Barack Obama, left, greets patrons during an unscheduled stop at the Buff Restaurant, Sunday, Sept. 2, 2012, in Boulder, Colo. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama

    President Barack Obama poses for photographs with patrons in the courtyard during an unscheduled stop at the Buff Restaurant, Sunday, Sept. 2, 2012, in Boulder, Colo. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama

    President Barack Obama, center, is seen greeting patrons outside in the courtyard as people inside take photographs with their cell phones, during an unscheduled stop at the Buff Restaurant, Sunday, Sept. 2, 2012, in Boulder, Colo. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama, Barbara McClusky

    President Barack Obama, center, poses for a photograph with Barbara McClusky, 78, as he greets patrons during an unscheduled stop at the Buff Restaurant, Sunday, Sept. 2, 2012, in Boulder, Colo. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama

    President Barack Obama, center, greets patrons during an unscheduled stop at the Buff Restaurant, Sunday, Sept. 2, 2012, in Boulder, Colo. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama

    President Barack Obama waves as he takes the stage during campaign stop on the campus of the University of Colorado in Boulder, Colo., on Sunday, Sept. 2, 2012. (AP Photo/David Zalubowski)

  • Barack Obama

    Supporters greet President Barack Obama during campaign stop on the campus of the University of Colorado in Boulder, Colo., on Sunday, Sept. 2, 2012. (AP Photo/David Zalubowski)

  • Barack Obama

    Supporters reaches out to shake President Barack Obama's hand during a campaign event at University of Colorado Boulder, Sunday, Sept. 2, 2012, in Boulder, Colo. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama

    President Barack Obama waves to supporter as he introduced during a campaign event at University of Colorado Boulder, Sunday, Sept. 2, 2012, in Boulder, Colo. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama

    President Barack Obama waves to supporters after coming onstage during a campaign event at the University of Colorado Boulder, Sunday, Sept. 2, 2012, in Boulder, Colo. (Andrea Rael, The Huffington Post).

  • Barack Obama

    President Barack Obama waves to supporter as he introduced during a campaign event at University of Colorado Boulder, Sunday, Sept. 2, 2012, in Boulder, Colo. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama

    President Barack Obama speaks during a campaign event at University of Colorado Boulder, Sunday, Sept. 2, 2012, in Boulder, Colo. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama

    President Barack Obama speaks at the podium during a campaign event at the University of Colorado Boulder, Sunday, Sept. 2, 2012, in Boulder, Colo. (Andrea Rael, The Huffington Post).

  • Barack Obama

    President Barack Obama speaks at a campaign event at the University of Colorado Boulder, Sunday, Sept. 2, 2012, in Boulder, Colo. (Andrea Rael, The Huffington Post).

  • President Barack Obama is joined onstage by Colorado Senator Michael Bennet and Governor John Hickenlooper after his speech at the University of Colorado Boulder, Sunday, Sept. 2, 2012, in Boulder, Colo. (Andrea Rael, The Huffington Post).

  • Barack Obama

    President Barack Obama speaks during a campaign event at University of Colorado Boulder, Sunday, Sept. 2, 2012, in Boulder, Colo. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama

    President Barack Obama reaches over to greet supporters during a campaign event at University of Colorado Boulder, Sunday, Sept. 2, 2012, in Boulder, Colo. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama

    A supporters holds up a giant photograph of President Barack Obama as he greets people in the audience during a campaign event at Univ. of Colorado Boulder, Sunday, Sept. 2, 2012, in Boulder, Colo. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama

    President Barack Obama speaks during a campaign event at University of Colorado Boulder, Sunday, Sept. 2, 2012, in Boulder, Colo. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama

    President Barack Obama gets off of Marine One helicopter before boarding Air Force One to depart from Buckley Air Force Base in Aurora, Colo., on Sunday, Sept. 2, 2012. (AP Photo/Chris Schneider)