SEE ALSO: Roo'ra member Chae Ri Na reveals her wedding was postponed because her husband was a victim of Gangnam stabbing incident

The idol confessed that she was a self-proclaimed expert at trimming nails, having done them for many of her friends. But when none of the male MCs volunteered to get their eyebrows trimmed, the duty fell to MC Kim Gu Ra.

Before beginning to trim Kim Gu Ra's eyebrows, ChoA suggested, "Since Kim Gu Ra has naturally thick eyebrows, the straight eyebrow look that's trendy these days should make him look clean and sophisticated." 

Afterward, the MCs had only compliments for ChoA's work! They stated, "Just that one thing makes Kim Gu Ra look smarter." 
 

Here are some of ChoA's eyebrow trimming tips for you!

Tip 1: Determine the thickness of your eyebrows by the portion closest to your nose.

Tip 2: If you have long hairs, use scissors to trim them shorter first. 

Tip 3: Using your trimming knife, put one end at the side edge of your nose and make a diagonal. That's where your eyebrows should end!