Apply a bead of flux to the solder joint.

Place a clean portion of the solder wick on top of the solder joint.

Press the soldering iron tip firmly against the wick for 2-3 seconds. You're trying to heat the wick hot enough so that it melts the solder underneath it.

As the solder saturates the wick, slide the wick so that a new portion touches the joint. You'll know it's saturated when the wick's color changes from copper to silver.

Once most of the solder has soaked into the wick, lift the wick and tip away together from the joint.