The Portuguese Humor!

"Portuguese people are of generally excellent humor when they are talking with someone who can't speak their language. This means that all manner of shop owners, sales-folk, and people curious about you will take time to try to carve out any means of communication, often with funny and unexpected results. Helping a foreigner is considered a pleasant and rewarding occasion and experience. If a traveller attempts to speak correct Portuguese, especially if slightly beyond the trivial, with locals, you will be treated with respect and often the local will apologize for how "difficult" it is to learn Portuguese, or how "hard" the language is, and will almost adopt you." at Wikitravel