how do you?..

how do you Grind and how do you get a really high hop i can hop but not very high any way yeah thanks

how high can u hop now?

you grind with your pedal or crank or both depending upon the object and how you grind…
practice on boxes and big concrete things…eventually move onto rails…
as for hopping it will come as your ride over time,or work out your legs and arms with weights and stuff…dont forget your abs either…

also get good at pedal grabs and crank grabs