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?