Replying and forwarding

I have this email from Judith, and I can do three different things with it.…I can reply to Judith, I can reply to Judith and anyone else who was included…in this email, that's called Reply All, or, I can forward this to yet another recipient.…So those three actions all have implications, and they all have cultural rules around them.…So let's talk a little bit about how this works.…If someone sends me a message, they may copy five or six other people, …but if I want to reply just to the sender, I click Reply.…

If I want to reply to the sender and those five or six other people, I choose Reply to All.…And if I want to send it to somebody who is not one of those people, then I choose Forward.…Let's start with Forward.…Judith has sent me this email that says we're going to discuss it when we meet…this afternoon, and I would like Olivia to print this for me;…my printer is not hooked up yet.…So I'm going to click Forward.…And I'm going to send this to Olivia.…Notice that as soon as I begin typing, because I've addressed some other things…