Why don't you ask your mother? I showed her all the fingering techniques I know last night.

But for real, practice scales and use your pinky as much as you can. Then move on the hammer ons and pull offs where you change which finger is fretting the lower note while doing the HO/PO with your pinky. It takes a long time but the answer to 99% of these posts is just play the guitar if you want to become more comfortable on the instrument.