New York, December 19 : Miley Cyrus has revealed that she sticks her tongue out because she doesn't know what else to do.

The 21-year-old daughter of country singer Billy Ray Cyrus said that the real reason behind her signature pose because she gets camera-shy and is embarrassed to take pictures , the New York Daily News reported.

She added that she doesn't know how to smile so she sticks my tongue out. (ANI)