Conducting creel surveys is probably the best way to observe angler behavior, see what technique works and what doesn't work, learn about what anglers are truely harvesting vs. what you think they might be harvesting, see how much C&R fishing really takes place, learn that fly anglers really aren't impeded by bait anglers or lure tossers, even on urban park streams, help a kid catch a fish or two by showing the kid a few bait fishing tricks, learn a few new tricks yourself...from bait, lure, and fly anglers, watch anglers do almost everything wrong (no wonder 70% of the angling trips are fishless), and, unfortunately, see an unbearable amount of litter in some cases. That having been said, you also learn pretty quickly when the best time occurs to fish for recently stocked (inseason) trout. In most instances (9 out of 10 times), it is the morning after the stocking, hands down! That is when the most people seem to catch the most fish and have their best outings, if pure numbers are what they are after.