Now that you've gotten lots of practice crocheting the single crochet stitch, you're going to get a crash course in a owl lot of new stitches:
Learn all of those stitches by following this one video:
You just crocheted in a straight line (woo!), which is called "crocheting in rows." Here's what you just did:
|Row 1:||ch 7||(7)|
|sc, hdc, 2 dc, hdc, sl st||(6)|
Fasten off, leaving a long tail. Use that tail and the tapestry needle to sew one end of the eyebrow between rounds 6 and 7, centered between the eyes. The eyebrows should point upwards at about 45°.