One day after the second inauguration, President Obama, first lady Michelle Obama and first dog Bo surprised tourists at the White House on Tuesday afternoon with an in-person appearance.

The first lady gave Twitter users a heads-up of the surprise visit in a tweet from her account on the micro-blogging service:

Shhhh! Barack, Bo & I are about to surprise folks on @whitehouse tours! I love doing this. Watch here: –mo

— FLOTUS (@FLOTUS) January 22, 2013



Some of the visitors to the White House were staffers and volunteers for Organizing for America and the Democratic National Committee, according to Buzzfeed's Zeke Miller.

Here is a roundup of some of the tweets of the visitors who were surprised by the Obamas today.