Some useful Arabic phrases:

As-salaam alaykum – Peace be with you (greeting)

Wa alaykum as-salaam – And with you peace (reply)

Kayf halek ? How are you? (to a man)

Kayf halesh? How are you? (to a woman)

Al hamdu lillah, bikhair – Fine, thanks be to God

Zain - good. (another response)

Tammam - (and another)

Tayyib - (and another)

Sabah al khair - good morning

Sabah al noor - good morning (the response)

Misa al kayr - good evening

Misa ah noor - good evening (the response)

Ahlan wa sahlan - Welcome

Marhaba - Hello