在询问留学生名字时，可以使用以下几种方式，这些方式既礼貌又得体：

直接询问

"Hi, I'm [你的名字], what's your name？"

委婉询问

"May I know your name, please？"

"Could you please tell me your name？"

自我介绍后询问

"I just introduced myself, could you tell me your name？"

在对话中自然引入

"I'd like to know your name so I can call you by it. What's your name？"

正式场合的询问

"Excuse me, could you please provide me with your name？"

这些表达方式在不同场合下都能很好地适用，可以根据具体情境选择最合适的一种。例如，在正式会议或学术研讨会上，使用"Excuse me, could you please provide me with your name？"会更加得体；在日常对话中，"May I know your name, please？"则显得亲切自然。