Position the wick over the joint, and press down on the wick with the soldering iron as shown in Figure 3-3. The heat will pass through the wick and melt the solder. As this happens, the wick will soak up the solder, removing it from the joint. When you’re done, you can trim off the used portion of wick with your wire snips.
The wick will get very hot, so take your hands off it as soon as you press the soldering iron to it (the soldering iron will hold it in place).