Hi:<br/><br/><br/>I know that one needs to use a comma surrounding the name or title of a person directly addressed:<br/><br/><br/><i>Thanks, John, I will.</i><br/><br/><br/>Do we also need to use a comma in the following:<br/><br/><br/><i>Thanks, John.</i><br/><br/><br/>OR will <i>Thanks John</i> suffice?<br/><br/><br/>Thanks,<br/><br/>Sunu