Ele estava olhando para minha filha com olhares lânguidos.

English Translation

He was making sheep’s eyes at my daughter.

I think that the real meaning of this sentence is not clear. The term “sheep’s eyes” suggests an adoring look or perhaps a lascivious look, a languid = lâguido look seems to be lazy. The expression “sheep’s eyes” isn’t in common use, in fact it is rarely used in North America.