Bae Doo Na made a guest appearance on 'Infinity Challenge' to give the members some advice on how to audition for a role in Hollywood.

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She said, "You shouldn't give up just based on looks, and being able to speak English is important. However, being confident is also important. For one instance, I played a role of a middle-aged Mexican woman but I obviously didn't know any Spanish at the time when I auditioned so I just auditioned in Korean." This took the members off guard. 

She continued, "I told them that if they gave me the role, I'll memorize the Spanish script no matter the circumstance. I also tried to appeal to them with my confidence by letting them know I even played a role where I had to play table tennis with my left hand. It's important to make them think, 'I want to have the chance to work with that person'."

Bae Doo Na is a widely known actress who has appeared in many popular and successful films and dramas such as 'Sense8', 'Jupiter Ascending', 'Cloud Atlas', and much more.