最礼貌的说法

"What's your name？"

"Could I have your name, please？"

"May I know your name？"

比较随意的场合

"What's your name？"

正式场合

"May I have your name？"

"How shall I address you？"

如果对方没有听清

"I'm sorry, what was your name again？"

自我介绍后询问

"Hi, I'm [Your Name]. And you？"

这些表达方式可以根据不同的场合和需要选择使用，以确保既礼貌又准确地询问到对方的名字。