How can I mark an email as SPAM without "opening" it?

When I go to "the cloud" to read my email, I might see spam there.

But when I click on the email message to mark it as spam or even

delete it, I've "opened" the email. I don't want to do that, right!!!

So how can I mark it as spam *or* delete it without "opening" the

email in question.

Thanks!

[and oh, by the way, since moving to the cloud, I've gotten lots of

spam -- something I almost never got with me.com. just fyi...]