Dumbass. He didn't pretend to know what he's talking about. You should learn how to read. He was asking a question specifically because he didn't know.
Motorcycle shifter:
The shifter is a ratchet-like mechanism. When in neutral position, you have to push down on the shifter with your left foot to get into first. Then you have to pull up to get into second and so forth. When shifter from first to second you are actually skipping neutral. Hope this helps.
"Slipper" clutch:
In theory, you can shift gears on any vehicle without using the clutch, so long as the engine is turning at the right speed and you're doing it at the right time. It's all about timing.
When going down the 1/4 I only use the cluth for 1st to 2nd (but I feather it). The rest of the gears I just go through them with wide-open-throttle. You can technically do the same with a car, although it's certainly not recommended. With a motorcycle it's easier though - they can take a beating.