Fishing is a boring thing for some WoW players, others love it. With the new Darkmoon Faire island, there is a new companion pet that can be catched from most of the water zones around there.
Is also a rare drop, it might take a while to catch it.
Here is a comfortable method for fishing. Two monitors are required, the main will run WoW and the second will be for browsing the web or something else.
Play WoW in full screen windowed (from video settings), turn on the “sound in background” option, zoom in max, and throw the hook. You can get on the second monitor with the mouse cursor while waiting for the fish to bite.
All the actions required will be to click, loot, throw the hook again. You will notice when the fish bite from the sounds, no need to wait and look for it.
Set the fishing keybind on mouse scroll down. Surf the web or do something else on the second monitor.