Start off by taking off the top lid to expose the teeth of the grinder. Now take your cannabis flower and break it up a little bit with your fingers so that the pieces fit better into the grinder. Personally, I break mine up to fit inside the teeth but you can leave them a bit larger.
Then place the top back on the flower and push down to close it.
twisting the base and top in alternate directions will break up your bud to a nice even consistency. If you are using a single compartment grinder you will now open it up and dump out your ground cannabis from your grinder onto a rolling tray or stash jar to use at your convenience. If you are using a multiple-level cannabis grinder your bud will pass through a series of small holes and be deposited into a storage level for you to easily grab and use as you please.