Simplest explanation: press every button on cooldown except disengage and deterrence. When everything is on cooldown, alternate between cobra and arcane for single tar (avoiding focus cap), replace arcane shot with multishot for aoe. ALWAYS be pressing buttons, no downtime. This is absolutely not optimal, but if you're just learning the class and not comfortable with it yet, it should improve your performance. Believe it or not, this would probably increase the dps of about 90% of the non-raiding hunters in the game.