how to i start learning nosegrinds? (front or back, i have no preference)
ive seen people ride into it, is that easier than popping into it?
There are people who can do them more like a nosegrind on a ledge or flatbar, either ollie into or roll into them, which is right on top of the coping, and then there is the other one almost more like a nose manual across a face of a bank, or at least that is a really good way to learn them to get up a bit higher and higher until you touch coping, but not usually get up on top.
One trick that can help too is a very gentle nose tap revert, so not quite like a nose stall, or nose slide on a ledge, but coming up with front foot on the nose, often on a bit of an angle, push up into the nose stall and go almost more to crooks, grind for a bit and then revert / turn out.
That is one that I often go to, which is a little easier and kind of lazy but it is a good one to get the balance on to then be able to get them up higher or better once you get the feel for it.
Just doing mini nose manuals are a good start though, be it on banks, on transition or anything that you can either roll into or ollie into, depending on what else you are used to doing on other terrain.