By Geneva Sands - 01/25/12 01:18 PM EST
Giffords, who was severely wounded in a shooting last year, announced Sunday that she would resign from her House seat this week.
The Arizona congresswoman also received a very warm welcome from President Obama, who stopped to give Giffords a hug before heading to the stage to begin his speech.
Giffords participated in bipartisan seating along with her fellow lawmakers during the address. She sat between Arizona Reps. Jeff Flake (R) and Raúl Grijalva (D).
The bipartisan seating effort was in part inspired by Giffords herself. The shooting in Arizona took place shortly before last year's State of the Union address, for which lawmakers ended the long-held tradition of sitting according to party affiliation.
The House will meet Wednesday to take up the last bill introduced by Giffords before she steps down from Congress.