I'm hard pressed to remember the first trout. Like others here I started on bluegills & L/M bass, and that was using poppers. I sort of graduated from there - learned how to cast with the poppers and catching (especially) bluegills, all at once we were planning a trout fishing trip. The first time I did poorly, confused as to what to use in the fly department, AND how to use it. The next trip I did so much better. An old timer took pity on me and had me stand sideways to the current (wide river), and cast to my left (upstream), using a black nosed dace, let the current carry it down stream and then I would retrieve it, and cast it again. Don't remember how many I caught but it was a few. Important thing is that outing opened a whole new world to me!