Filling in your eyebrows doesn't have to be a lengthy process. Keep it simple by using a brow powder or pencil to define a bottom line, and then smudge upwards and blend. Get the tutorial at Covergirl (Best Eyeliner No Smudge)
Eyebrows are not one-size-fits-all! Consult this guide to find the best eyebrow arch for your face shape, then click through for tips on how to get it. -- I actually have naturally straight brows, which suits my long face perfectly.