Hello

acorda

(sarcastic: that was foolish)

alô

(when answering the telephone)

alô

(sarcastic: that was foolish)

e aí?

(greeting)

estou

(when answering the telephone)

o que

(expression of puzzlement)

oi

(greeting)

oi?

(expression of puzzlement)

olá

(greeting)

olá?

(is anyone there?)