Would you say "Can I check out?" in a clothes store?

Posted by --THRILLHO--@reddit | AskAnAmerican | View on Reddit | 49 comments

I'm an English teacher from the UK, and a lesson I'm doing has me teaching the phrase "Can I check out?" as a way to tell the salesclerk in a clothes store that you want to pay.

Is this a phrase that you would use? I've never heard anyone say that before in a store.