I'm kidding, of course. This duck wasn't interested in having her picture taken - she was looking for a handout. I didn't have a single thing to offer her, not that I would have anyway. There's a reason the ponds are posted with "no feeding the waterfowl" signs.
All of the ponds the ducks frequent (both migratory and domestic) are in residential areas, surrounded by homes. Most are passive-use municipal parks and often attract large numbers of Canada Geese and Mute Swans. People using the parks like to feed them and that attracts more of the beggars and probably drives away the migrant waterfowl. It also dirties the water, and in the case of Wreck Pond, which is tidal, creates a significant environmental problem.
Better just to tell her how pretty she is and go on my way.