it does not mean what you think it means

While opening my package of Brazilian Oreos (negresco), I noticed the wrapper said, "puxe" at the pull-tab.  

Puxe means "pull." Empurre means "push."

guards you from a shower

chove muito aqui.
eu tenho um guarda-chuva.
(it rains a lot here.
i have an umbrella.)