Meghan Markle’s university classmate has shared a throwback photo of the Duchess of Sussex learning to dance. The duchess’s former classmate, Iris Amador, shared a throwback photo to Instagram of Meghan, herself, and three other people at a Salsa class at Northwestern University. Meghan graduated from the school with a double major in theatre and international studies in 2003. The former Suits actress is pictured wearing a black turtleneck jumper and dark wash jeans, with her hair pulled back into a low ponytail. Amador captioned the post: “Salsa lessons with the then future-to-be #DuchessOfSu…