I think my favourite way to wear boyfriend jeans is with a pair of heels. There's something about the juxtaposition of a relaxed, loose fit pair of jeans with a killer pair of heels that just feels right.
Clearing out my closet got me thinking about what my key pieces are.... I think a silky white blouse is definitely one of them. Crisp white shirts are good too but for that laid back, nonchalant feel I lean towards silky.