最普通的:how are you ?
其它的:how are you doing?/how's everything going/how's it going?/what's new?/are you doing well?
What's up?
How have you been these days?
How is your life?
...
最地道的,
how are you going
how are you getting along
还有美国人喜欢说: What it up?
另一种说法:How's everything?