You're welcome, sadnpod! Glad to be of help.
And along that vein, here's the rundown on Twitter:
LINGO:
Tweet: A post. When you say something on Twitter, you "Tweet it"
Tweep: Twitter "peeps," or people.
Twit: A person who uses Twitter.
RT: Retweet (see below item 3)
FF: Follow Friday. This is where users suggest people for their followers to follow. Also a way for users to give each other "props" for having good content
TBT: Throwback Thursday. This is usually used in the context of someone posting an old photo & is a fairly new trend on Twitter.
@: See items 5 & 6
#: See item 7
GENERAL:
1. The people you follow on Twitter show up on your "home page" just like Facebook. Everything they "Tweet" will be shown there.
2. Similarly, everything you "Tweet" shows up on the home page of your followers.
3. People can "Retweet" others. This way, you can share something someone has said with your followers. This is sometimes used in the way the Facebook "like" is used.
4. You can also "Favorite" a Tweet, which will then show up in a list of your "favorites." You can view a users favorite tweets by clicking on "Favorites" toward the top left of the twitter page (on the web, phone apps are set up differently)
5. An @ symbol is followed by a username. When someone uses the @ symbol, they are "talking" to someone else.
6. If you click a tweet to "expand" it, you can see who has retweeted or responded to that specific tweet. If two users are tweeting back and forth with the @ symbol, you will see their entire conversation.
7. The # you see in front of words creates a "Tag." These Tags then create "Trending Topics." If you see a Tweet that has used a hashtag (#), you can click on that tag and see all the tweets using the same tag. This is often useful with news items. For instance, If you want to see what people are saying about Hurricane Sandy, you can use your search bar (top of page) to type "Sandy" or "HurricaneSandy," and all the tweets with those Tags will be displayed. People also use these as a funny aside. For instance, if you tweet "Just fell down the stairs," you may add #ClumsyGirlProblems to add some amusement and so other people with similarly klutzy lives can see your tweet. There are popular hashtags, like #HumbleBrag, #FirstWorldProblems, #Sh--NooneSays (with the expletive used) etc.
8. Trending Topics are things a lot of people are talking about. If you click "# Discover" at the top of your Twitter webpage, it will take you to a page of trending topics & news that may be important to you (given who you follow or what you tweet). On this page, the "Trending Topics" are listed to the left in the "trends" box. You can click these trends and see the tweets that have used them.
That's all I can think of for now. As you can probably tell, I love Twitter and have used it for about 4 years now, so if you ever need any help understanding Twitter, I'll try to do my best to explain. I hope this helps you all to use Twitter more effectively, because it really is a remarkable tool.