If you want to get someone's attention to a specific post you're writing, you can tag them. To tag them, you simply use the @ and type their username (without any spaces) after it. It will show up in their alerts, thus bringing their attention to the post. Go ahead and give it a try!
I knew it but... I'm thinking I tried it one day and it didn't work for me. Maybe I got the username wrong or something. I'll test it on myself @Kate . I think it's a good feature. I try to keep track of what I've written to see if there are replies, but I miss some of them until much later.
