f(x)'s member Amber talked about how she feels about people mistaking her for a guy.

On MBC "I Live Alone" aired on Thursday, Amber appeared as a guest.

"I look strong on the outside but I get hurt easily," said Amber about people mistaking her gender because of her boyish style.

"I'm a girl. People get surprised in the restroom. They say, 'I think you're in the wrong bathroom.' I guess I understand why they misunderstand but I can't help but get hurt by it," she said, talking about her inner feelings.

"I just wish people would be nicer about it even when they point things out. People usually say it in such offensive way," she added last.