1. To reply to a Thread, click Communication (next to Content on the Navbar).

2. Click Discussions (the last option on the drop-down menu).

3. Click a Topic. For example, Midterm Elections.

4. Click a Thread. For example, Top Issue.

5. Click Reply (gray button).

6. Type your response in the text box.

7. Scroll down and click Post (blue button).

8. That's it. You're done!

Interactive tutorial