You're in your first period of school and your teacher announces that a new student is coming

Teacher:"Class! Today we have a new student coming." She said as he walks through the door Teacher :"Can you introduce yourself to the class?" She points to the front of the class and he walks there Student:"Hi, my name is Bahng Christopher Chan, you can call me, Bangchan, Christopher, Chris, or Chan. I am Australian and Korean. I am a new student here and I just moved here to Seoul." Teacher:"You can sit there." She points at an empty seat next to you and goes there. He sits down

Chan:"Hi, I'm Chan. What's your n-name?" He says in a shy tone