He’s not expressing confusion, he’s tilting his head for better sound localization. While having an ear on each side of the head is good for lateral echolocation, tilting the head so that the ears are offset gives it vertical depth.
Oh my gosh, that explains why some dogs put their head to one side when you talk to them. They’re not confused, they’re trying to listen to us better. Awww.
Actually, before Hitler’s regime, the masculine color was pink and blue was the color for females. This all changed when Hitler started using colored stars to identify the people in his camps, such as yellow for the Jews. Homosexuals were forced to wear pink stars, so pink was then seen as feminine. Long story short, baby boys are wrapped in blue and baby girls are swathed in pink because of Hitler.