If you go to the pond daily or close to daily (or if you live there), feeding by hand is a pleasurable event, and you can do it somewhat regularly.

But in a pond of your size, most likely, the fish will come to wherever you are throwing feed.

Usually, Bluegill are the first fist to take to feed. Bass take a bit longer, but all it takes is one or two to start eating the feed, and then the others catch on pretty soon after.

If you do go with a feeder, that is a very steady way to go and the fish will eventually start to gather at the feeder before it goes off, which is also a joyous event to watch, repeatedly.

Excerpt from Robert Crais' "The Monkey's Raincoat:"
"She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."