I would like to try fly fishing 
Fishing? What is that?
fly fishing is an angling method in which an artificial fly is used to catch fish I have never been but would like to 
I have never done that either. Can you tell me more about it? It sounds fun
you cast a nearly weightless fly it requires casting techniques significantly different from other forms of casting
I see, it must require a lot of precision right? I am not very good at fishing.
yes it requires precision but you can do it fresh water or salt water so there are place around where I can go practice
I might go practice today since I have time. Do you like fishing in fresh water?
and a fly line. The fly line (today, almost always coated with plastic) is heavy enough to send the fly to the target. The main difference between fly fishing and spin or bait fishing is that in fly fishing the weight of the line carries the hook through the air, whereas in spin and bait fishing the weight of the lure or sinker at the end of the monofilament or braided line gives casting distance. Artificial flies are of several types; some imitating an insect (either flying or swimming),
Fly fishing
Fly fishing is an angling method that uses a light-weight lure -- called an artificial fly -- to catch fish. The fly is cast using a fly rod, reel, and specialized weighted line. The light weight requires casting techniques significantly different from other forms of casting. The flies may resemble natural invertebrates, baitfish, or other food organisms.
Fly fishing can be done in fresh or salt water. North Americans usually distinguish freshwater fishing between cold-water species (trout, salmon, steelhead)