Put "right?" at the end of a sentence to ask someone to confirm what you just said. For example:

We're leaving at 7:30, right?

This is similar to using a tag question like this:

We're leaving at 7:30, aren't we?

But "right?" is easier than a tag question because tag questions change depending on what kind of helping verb you use:

You were there, weren't you?

He sure talks a lot, doesn't he?