The best way to boost your average APM is just to memorize your hotkeys and builds the best you can, but this trick will give you instant bragging rights while also making you look like a crack addict!
Depending on the length of your game and how much you actually micro in your games, your APM can reach 1500 and up easily. I tried to upload one with about 1550 APM, but in respect to copyright warning on music I put on while doing the video (-__-), I removed it and had to do my best in replicating it.
Suggestions, comments, concerns, or anything of the like are welcomed, and I will respond to them as soon as I receive them.
Thank you for watching :D