Correct etiquette is important in Arabic culture and people exchange several greetings before getting down to further matters. Here is how you would go about introducing yourself in Arabic -
Hello - Salam!
Hello - Ahlan wa Sahlan (to one person) / Ahlan wa Sahlan bekum (several people)
Hi - Ahlan (informal, one person)/ Ahlan bekum (informal, several people)
Hello (in response) - Ahlan beek (m.) / Ahlan beeke (f.)
Welcome - Marhaban
Peace be upon you - As-salaamu Alaikum
And on you be peace - Wa `Alaykum As-Salām
Good Morning - Sabah el Khayr
Good Morning to you too - Sabah in Noor
Good Afternoon - Misa’ il Kheer / Nahar ukum Sareed
Good Afternoon to you too - Misa’ in Noor
Good Evening - Masaa el Khayr
Good Evening to you too - Masa in Noor
Goodnight - Leilatak Sareeda
How are you? - Kheifa haluka? (m.) / Kheifa haluki? (f.)
I am fine - Ana bekhair
I am very well - Taman, bekhair
Thank you - Shukran / Mashkour
I thank you - Ashkurak (m.) / Askkurach (f.)
And you - Wa ant? (m.) / Wa anti? (f.)
Who are you? - Meen enta? (m.) / Meen enti? (f.)
What is your name? - Shinhu ismek? (m.) / Shinhu ismech? (f.)
Mr - Assaiyyad
Mrs. - Assaiyyida
Miss - Al-aniseh
May I introduce myself - Tismahli agaddem nafsi
My name is XYZ - Ismi XYZ
This is Mr... - Isma holi anokhat dimalakum assaiyyad...
This is Mrs... - Isma holi anokhat dimalakum assaiyyida...
I am a high school/college student - Ana taalibun (m.) / Ana taalibatun (f.)
I am from the University of XYZ - Ana min jaami'ati XYZ.
Where are you from? - Min ayna anta? (m.) / Min ayna anti? (f.)
Which country are you from? - Inti min ayy balad?
I am from XYZ - Ana min XYZ.
I am from XYZ city - Ana min madiinati XYZ.
I do not speak Arabic very well - May tekallam arabi zain.
Excuse me, do you speak English? - Men fathlek tatakalam Inglesi? (m.) / Men fathleki tatakalam Inglesi? (f.)
Yes - Na'am.
No, sorry - Laa, aasif.
I did not understand - Ma fahamt.
Can you understand me? - Tifham ley? (m.) / Tifhmeen ley? (f.)
What did you say? - Mahda kolt?
Nice to meet you - Tasharrafna.
See you later - Araka fi ma ba'd. (m.) / Araki fi ma ba'd . (f.)
Good bye - Ma’a salama.
Good night - Tosbeho ‘ala khair (m.) / Tosbeheena ‘ala khair (f.)