Laura Bush at the 10th annual National Book Festival last year. (Carolyn Kaster/ AP)

• Laura Bush walking on 17th Street Monday afternoon. The former first lady (sunglasses on) and her unobtrusive security detail were only a block from the White House, but went totally unnoticed by the throngs on the sidewalk. In town for the “Points of Light” gala Monday honoring her father-in-law.

• Ben Bernanke and his wife at Arena Stage Saturday night. The Fed chair (casually dressed) attended a performance of “The Chosen.”

• Peter Orszag multi-tasking at 16th and M St. Friday — Bluetooth in one ear, cell phone against the other.