Help out a a gal who is entering the whole social media thing, kicking and screaming...

<p>How does twitter work?</p>
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<p>IfI hit "reply" to respond to someone's tweet, shouldn't it show up on their page?  Like Facebook?  It shows up on my page, but not under the comment that I tweeted about.</p>
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<p>It's my first tweet.  I think I did it wrong.</p>