与新同学第一次见面的英语对话可以如下展开：

问候与自我介绍

A: Hello, my name is [Your Name].

B: Hi, [Your Name]. Nice to meet you.

询问对方信息

B: I am a new comer here. What about you？

A: I am a stranger here too.

了解对方班级

B: Then which class are you in？

A: I am in [Your Class], Grade [Your Grade]. And you？

B: So we are in the same class. That's great!

表达共同兴趣 （可选）：

B: By the way, do you like playing football？

A: Sure. Let's play together after school.

结束对话

A: Great idea! Goodbye!

B: Bye-bye!

这些对话内容可以帮助你和新同学在初次见面时建立友好的关系，并快速了解彼此的基本信息。