How to Express: Introducing one and others

Observe the picture and practice the following dialog with a partner!
Peter    : Hello!
Sheila   : Hi!
Peter    : Are you a student here?
Sheila   : Yes. I am a new student in the first grade. What about you?
Peter    : Me too
Sheila   : By the way, my name is Sheila, Sheila Iskandar
Peter    : I am Peter. Peter Sirait
Sheila   : How do you do Peter?
Peter    : How do you do Sheila?
Sheila   : What class are you in?
Peter    : I am in X two
Sheila   : What about you?
Peter    : I am in the same class with you
Sheila   : Great! Let’s go!

The expressions in bold type are used to express introduction.
Study the expression of introduction in the table below!

Introducing Oneself	Introducing others
Hello. I am Sheila Iskandar.Excuse me, my name is Sheila Iskandar.Let me introduce myself. My name is Sheila Iskandar. Allow me to introduce myself. My name is Sheila Iskandar. How do you do? It’s nice to meet you.	Let me introduce my friend, Lina.May I introduce my friend, Lina?This is Lina. Have you met Lina before? Do you know my friend, Lina? Please meet my friend, Lina.