Use the pencil to fill in the sparse spots with short, feathery strokes. Apply in the direction of hair growth. The key here is not to create a definite line, but to create the appearance of hair. Be careful not to pencil in the entire brow, which will result in an unnatural look.
When in doubt, always fill in with makeup. If you don't want to touch your eyebrows at all, filling in your eyebrows can create the straight away look. Start from your inner eyebrow all the way to the end. Try using a straight line guide like a business card to help align the drawn brow correctly.
Eyebrows are having a big beauty moment, and the question is, which method is better to get and maintain the shape you want: threading or waxing. Waxing has been the go-to method of brow maintenance if you want it done by a professional, and many women get their brows waxed at thousands of salons across the country or they do it themselves at home.