fishin for trout in lakes

yesterday my son and i went fishin at a local lake in blowin rock ,
(appropriately called trout lake). he fished with his spin rod, i with my
fly rod. he had an artificial worm on his hook, which landed him his first
trout. i, in spite of trying a few different flies, got nothing. my
question is this. in the absence of a hatch, when fishing for trout in
lakes, does one approach fly selection differently than when fishing
streams?


you ever fish in there mark?

snakefiddler