Here is a quick fix for you.
Download Pimsleur Portugese I. Listen to the first 3-4 lessons. You will now know how to say stuff like "where is __", "my name is ___", "I only speak a little bit of portugese", "Do you speak English?". Use these to try to stop a girl and then use portugese to ask if she can speak english. If she can, then transition into english and try to chat and ask her out for drinks and get her phone number.
But for the long term, picking up the language will give you infinitely more prospects
Download Pimsleur Portugese I. Listen to the first 3-4 lessons. You will now know how to say stuff like "where is __", "my name is ___", "I only speak a little bit of portugese", "Do you speak English?". Use these to try to stop a girl and then use portugese to ask if she can speak english. If she can, then transition into english and try to chat and ask her out for drinks and get her phone number.
But for the long term, picking up the language will give you infinitely more prospects