Using a needle threader can make threading a needle much easier and quicker. Here is a step-by-step guide on how to use a needle threader:

1. Hold the needle threader: Start by holding the needle threader between your thumb and index finger. It usually has a thin metal wire or loop attached to a handle or frame.

2. Insert the wire through the needle eye: Take the wire or loop of the needle threader and carefully insert it through the eye of the needle. Make sure the wire goes all the way through the eye, leaving a loop on the other side.

3. Insert the thread through the needle threader loop: Take the end of the thread you want to thread through the needle and pass it through the loop of the needle threader. Hold onto the thread securely to prevent it from slipping out.

4. Pull the needle threader back through the needle eye: Gently pull the needle threader back through the needle eye, ensuring that the thread remains in the loop of the threader. This will bring the thread through the needle eye as well.

5. Remove the needle threader: Once the thread is through the needle eye, carefully remove the needle threader from the needle.

6. Pull the thread through: Once the needle threader is removed, give a gentle tug on the thread to ensure it is securely threaded through the needle. You can then trim any excess thread if needed.

Remember, practice makes perfect when it comes to using a needle threader. With a little patience and some repetition, you'll find threading needles to be a breeze.