Installing bird feeder pole

My feeders on the washing line have now been subjected to several squirrel attacks, so I decided it was time to get one of those feeder poles and managed to procure one from a kind local Freecycler. However, I have no idea how to get it into the ground - any tips?! The ground is very dry and hard at the moment - shall I water a section to make it moist? Do you hammer the stake into the ground? Or twist it in?

Any help much appreciated :)