Write an article based on this "Hold the threader in one hand and the needle in the other. Insert the wire threader loop through the eye of the needle. Guide the end of the thread through the threader loop. Double the thread over on itself."
For most people, it will probably be easiest to have the needle threader in your dominant hand. If you're right-handed, for instance, you'll hold the tool in your right hand, while left-handed sewers will use their left. You'll have much more coordination that way, which will allow you to focus on manipulating the small items you'll be working with. Make sure you're gripping the needle so that the eye is pointing upwards. Those with unsteady hands may find it helpful to stabilize the needle using a pincushion or piece of cork. The larger object will hold the needle in place while you're threading so that you won't have to. It may take a few attempts to get the two pieces lined up correctly. Push the threader until the needle rests in the shallow groove next to the base. This will keep it from accidentally slipping out. If you're having trouble getting the threader loop through, turn the needle slightly so you can see the opening a little better. You may need to push the threader gently to force it through the eye of a smaller-sized needle. The wire threader loop will give you a much larger target to aim at. Once you've got the thread inside, pull the loose end to continue feeding it through. Needle threaders take the imprecision out of threading by working in reverse. Instead of guiding the thread straight through, the threader allows you to anchor it in place, then pull the needle around it. Pull the loose end back on itself so that it runs alongside the length of the thread. Gather up both ends between the thumb and forefinger of your free hand. Be sure to create enough length to keep a secure grip on the folded thread. You'll load the threader the same way whether you want to work with single or double thread.