So the pay off for knitting miles and miles and miles of stockinette?
The decreases on this hat are going to be lightning quick. Like two rows of knitting quick. Like blink and you miss them quick.
But before you can do them, you do need to check to be sure the hat is tall enough, because those fast decreases mean you lose some of the height to fabric distortion. This is the way I do it (put all your stitches on either two long dpns or two long straights, try it on, if it fits your golden).
The other option is something like this. But it seems to guarantee your neighbor will walk by while you’re in the middle of things and it’s a little awkward to explain…