These crimp pins are really easy to use. First, grab a pair of needle nose pliers and a soldering iron. With the pliers, hold the pin firmly and then use the soldering iron to attach it to the right place on your perf board or PCB. They're great for power connections or connecting sensors. A big advantage is that they stop you from connecting things the wrong way. As for maintenance, keep them in a dry place to prevent rust. And don't forget, you need to order the mating header and housing to make the most of these pins.
