الوداع Good-bye(the one departing)…
مع السلامه (The one remaining)
الى اللقاء قريبا See you soon
الى اللقاء See you later

رجاء Please
شكرا لك Thank you (male)
شكرا لك Thank you (female)
عفوا Your welcome

اعذرني Excuse me- male to a male and a female to a male
اعذريني Excuse me- male to female and female to female
اعذروني Excuse me- one person to a group of people
اسف Sorry- a male says
اسفه Sorry- a female says

مبروك Congratulations
حظا سعيدا Good luck
ان شاء الله God willing
اهلا وسهلا Welcome (the host says)