表示同意或赞成：
That sounds great!
Sure, why not?
Yes, I think it's a good idea.
表示不同意或反对：
I don't think that's a good idea.
Maybe not this time.
No, thanks. I'm not really into that.
表示中立或不确定：
Hmm, I'm not sure.
Let me think about it.
It could be interesting, but I need more information.
提出替代方案：
How about doing it this way instead?
What if we tried XYZ?
询问更多细节：
Can you tell me more about it?
What exactly do you mean by XXX?
表达兴趣或好奇：
Oh, that's interesting! Tell me more.
I've never tried that before. What's it like?
礼貌地拒绝：
Thanks for the offer, but I'm not really interested.
I appreciate the thought, but I have to decline.
表示已经考虑过或有其他计划：
I've already considered that, but I decided to go with something else.
Actually, I have other plans for today.
记住，在回答时要保持礼貌和尊重，即使你不同意对方的提议。根据你的具体情况和对方的关系，选择合适的回答方式。