Who knows how to ride a dirt bike?

You pull the clutch in all the way and press the shifter down into first gear. Then, you rev the bike a little bit and gently release the clutch until the bike jerks forward. Then, you just let go of the clutch and twist the throttle and your off. Then, to change to second gear, you again pull the clutch, shift the shifter up and release the clutch (you don't have to rev the bike this time because it is already revved up). Then so on and so forth for the next gears and shifting back down to first gear. Then, to get it into neutral, again pull the clutch in and this time shift up a half of a click. This may be tricky to get the first few times but with practice, you should be able to get it easily.