After School's Nana gave a tongue-in-cheek gift to her 'Roommate', Hong Soo Hyun!

After returning from a trip abroad, Nana doled out presents to all of her fellow cast members. When Hong Soo Hyun unwrapped her gift, she was in for a surprise as she was greeted with a Breathalyzer!

"I noticed you liked drinking," Nana explained. "You should blow into this and drink while knowing your levels."�

A Breathalyzer analyzes a user's alcohol level in his or her bloodstream. "Why is my face turning red?" Soo Hyun asked her. Maybe it was because of the alcohol? (wink)

Check out this week's episode of 'Roommate' below!

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