Although "Aproveite" has the meaning of "Enjoy" it can mean also make something valueble, not only enjoy. Anyway she is talking about the famous frase "Carpe diem" with the gerundian "aproveitando" (enjoying) to say that the way to "Carpe" life is "Carpe"-ing (forgive me for this ;)) the day. "Enjoy life [b]by[/b] enjoying the day".