Was fishing small brook were others have been catching (wild) brook trout. Carefully
approached bank and watched from ten feet away. There was a hatch and the several trout were feeding.

Cast from a kneeling position from ten feet away from bank..that was it. No more trout.
Tried for another hour, went upstream, saw no more fish.

Was using 4 wt rod, line, 9 ft. size 5 leader, size 16 dry fly..

Plan to go back soon to this stream. Any ideas? thanks