问人名和购物用语，如果试了鞋子但不够舒服不买了应该说怎样的礼貌用语

I'am sorry ,this shoes are very beatiful ,but it doesn't fit me.

That shoes don't fit me well,I won't take it. May I take another one?

These shoes are not comfortable enough. I won't take them.Thanks.(外国店里服务态度很好的,我朋友去法国试了十几双鞋子没买,那个店员还微笑着说欢迎下次来呢.)

I'am sorry

我一般都说, I feel uncomfortable when wearing them, so I may not take them.

洋人态度很好的,一般你说了uncomfortable,他们会重新帮你拿别的.或者推荐你另外的.

不过强烈鄙视一下那个去法国试了十几双鞋子都不买的女人.估计回头被人家骂4.太恶劣了,欺负人家态度好呀.

我有次想买个面试用的包,几乎看遍了所有店里的货,总是挑不到完全满意的.一洋人MM最后都爬梯子帮我拿了,最后我还是买了.觉得这样折腾人家太不厚道啦.太不好意思啦.

不过她倒是一直在说,不要紧的没关系,如果你拿回去觉得不好的话,一个月内都可以拿来换的.