Like the people in any other country the Portuguese are pleased if you come up with a few native expressions. Initially the Portuguese tend to be a bit reserved, but in the end they’ll thank you with heartfelt hospitality.
Some useful phrases:
bom dia (pronunciation: bon dia) good morning (a.m.)
boa tarde good afternoon (p.m.)
boa noite good evening (after sunset)
obrigado thank you (gentlemen)
obrigada thank you (ladies)
faz favor (fuzh …) please
bica small espresso
galao milky coffee
cerveja (servezha) beer
vinho tinto red wine
vinho branco white wine
pao bread
queijo (kehzhu) cheese
fiambre (boiled) ham
presunto (raw) ham
manteiga butter
aqua com gas fizzy mineral water
aqua sem (sei) gas still mineral water