Excuse me, I like your __________ .
Could/Can I ask … ?
A: Excuse me, I like your shirt. Can I ask where you got it?
B: Sure. I got it at the mall downtown.
Are you a friend of __________ .
A: Hi. Are you a friend of Jim’s?
B: Yes, I am. Jim and I work together. How about you?
Could I ask you something?
A: Excuse me. Could I ask you something? Do you know the teacher for this class?
B: Yes, I do. My friends all say that she’s helpful.
Would you excuse me?
Well, I’d better be going/I should be going.
(It’s been) nice talking to you.
I hope we get a chance to talk again sometime.