Beer = cerveja
Many thanks = Muito obrigado
Really, if in Portugal, you will do better to speak in english. Really, we don't find too much amusing here to see foreigners talk to us in spanish. most of portugueses have learend engligh in school and we are quite familiar with it (though we speak it with a thick accent), specially because we never dub the movies.... we subtitle them. so, in that regard, you can see the movies you normally see in your country without a problem, as they are in their original language. Cool news for you, i guess.
The sumemr is the ebst time to visit here. The shellfish food is great... the whole food is great, and so is the beers and wines. in that regard, you will have a blast.
Lisboa itself is pretty safe, but Amadora does have some problematic places, so i bit of cuation would not be too unwise... though compared to the crime rates of LA and NYC, this is pretty peaceful and almost uneventful.
And yeah, it would be cool to be in contact with you. Truly, anything you want to know, just ask away.