To give you a rundown of how it works first, you need to heat the soldering pad. To do that, you should place the soldering iron on the pad and put on a little bit of solder so the solder melts and conducts heat from the soldering iron to the pad. This heats up the pad, and when it is hot, you now need to tin the pad, which means you need to put enough solder on the pad to hold the wire you are putting on. Now to take your wire and put it on top of the tinned pad, and put your soldering iron on top. This melts the solder and lets the wire fall into the solder, and after it cools, you're done.