As far as rollcasting, if you start off around ankle deep water you're going to want to get 15' to 20' line pulled off the tip of your rod. Bring the rod to 12 O'clock position slowly and let the line sag back just behind your ear (it's important that it sags back or it won't roll properly), then power forward. This is a really basic way to rollcast but it will get you started, if you haven't you should get a video on casting. Rollcasting a floating line is easy (in fact I can rollcast farther than I can forward casting), big thing thogh like all fly casting is timing. Rollcasting a sink tip or a full sink line is much harder and I don't recommened you trying it until you get comfortable with the floating line.