Swing Dancing ~ I will learn to dance it some day. As in "you can dance like somebody's watching, because you are good enough to not feel like a clumsy goof". Swing was a type of dance during this time.
Mislabeled: This is showing up under vintage black and white and I wouldn't have noticed but there was a comment that said this was Katy Perry. They are correct it is Katy Perry from her Thinking Of You video.