Answer:
Place the needle at a low angle on the emery board and run it across a few times with some pressure. As you run it across, twirl the needle between your fingers so all sides of the needle are sharpened. Check using the fingernail test I detailed above if the needle is sufficiently sharpened.
Explanation:
Now for some tips
1. Use a Full Range of value.
2. Use line Quality.
3. Stay consistent with Your style.
4. Know Your Medium.