@Justin Hamel, to get the @ symbol to work properly to tag someone, you have to choose the name that pops up in a prompt near the bottom of the page after you type the symbol and the first few letters of the persons name. 

So for instance...if you wanted to tag me you would type @ and then start typing my name after the @ symbol.  

Keep reading the forms and listening to the podcast.Also if you want to get an individuals attention us the @ symbol and start to write their name.If you like what someone writes, give them a vote for appreciation.

Don't forget when you want to get someones attention use the @ symbol and start to write their name.When someone writes something you find helpful give them a vote to show you agree with them or like what they said.

The envelope symbol doesn't appear in your side.

@Tim Johnson when you're looking to tag someone in a post create the "@" symbol and then start typing the person's name and then underneath the reply box you should see their name pop up and you can click the person you intend to tag.

@Scott Heiman a couple of thoughts. 1) to "mention" someone, type the @ symbol and then the first three letters of their name.

@Debra Lamm If you type the @ symbol and then immediately after that start typing someone's name, their face and name should pop up underneath the text box.

@Aditya Varyou're welcome....quick tip: if you type in the @ symbol and start typing the name of the person you want to mention slowly their name will pop up.  

@Joey Tatara use the @ symbol then start typying joe and it will tag him in blue and notify him of your post @Joe Morris