Hi! Have you ever played the piano?
I have played Mary Had a Little Lamb! 
Mary Had a Little Lamb is a great beginner song. Have you played anything else?
I have also played Twinkle, Twinkle Little Star! 
Twinkle, Twinkle, Little Star is one of my favorites!
Do you play piano?
I've played the piano when I was younger!
What was the most complicated song you learned to play?