Even now I still get caught out when I see a sign on a door in Brazil saying 'Puxe'. Without fail I go ahead and push it, conjuring up images of that great Far Side cartoon in which the boy does the same at the School for the Mentaly Gifted.
If ever there was an open competition for the linguistically incompetent, it would be me.
PS For non-Portuguese speakers and the record, push is 'empurre'. Obvious really isn't it? No, I didn't think so.