Oh Su-hyang (F) is Korea's most noted psychological conversation expert. She won the Korea Sinzisikin Award and hold the positions of head professor of Kookmin University Lifelong Education Center and director at SHO Conversational Psychology Research Center. After realizing that many people have trouble with conversation, she began to study conversational habits that can change people's lives. Her coaching and counseling has now reached more than 300 lectures a year, and her lectures feature various topics including conversations at work, conversations between couples and conversations between parents and children.

She continues to make TV appearances while doing research in her specialty, conversational methods, and providing coaching and lectures. She was featured on KBS' Morning Forum, MBN's Golden Egg, OBS' Golden Pouch, SBS CNBC Biz-Inside and How much is it? on TV Joseon. She also worked as a show host speech trainer for GS Home Shopping for 2 years. In recognition of her achievements, she received a commendation from the National Assembly Culture and Arts Division and the HRD Korea Award.

Books she has written include the self-improvement best seller The Secrets of People Who Say Everything They Want with a Smile, Conversation Habits of Successful People, and Positive Speech Habits.