Things to stay away from. Ok, we've talked about rooms with titles that seem in appropriate. Things that can happen in rooms that she should avoid include being asked to PAY for playing a game or a quest ("Give me your gold ears and I'll give you this dirty rug"). Rooms that are giving away things that seem unlikely ("Rare items to give away") tend to bring out the bad apples ("What, you title that rare? I want more! Give me all your stuff! Give me stuff!"). People who walk into a room and beg for things ("I'm poor, give me stuff! I wish I had that, give me yours.")
If she's a very sensitive girl, have her stay way from "cute or boot" or "colors" games. These are totally subjective, and there are variations. For example, owner says "Blue!" which means everyone must dress in blue. You put on your blue clothes and stand there. The owner walks by each person and says, "cute" or "boot" as in you are dressed in a cute way, or I'm going to boot you. I know I'm mixing some of the variations here, but you get the idea. My daughter is a very sensitive girl, and doesn't do well with the boot part.
And finally, just as in real life, if someone is doing or saying something that makes you feel uncomfortable, leave. Have her get a couple of people from here on her friends list. We all work together to keep things safe. If someone is threatening or being truly disgusting, get her out of there, but first write down the instance of the room (in the player's guide in the setting up your character/navigation part) and the name (titles) of the person or people being inappropriate. Use the Contact Us feature on the VMK home page to report, in detail, where, when and who did or said what to whom. Do not attempt to engage them in a discussion about what they are saying until you've been playing a while yourself. Unfortunately, there is an element of "guilt by association" and if you are in a room where someone gets reported, even the non-guilty parties can be warned or banned.
I also do not let my daugther trade items yet. Turn off the trades function (on the screen, lower right, thing looks like an equalizer, uncheck the "show trade requests" box). That will keep her from getting ripped off. If there's something she really wants but does not yet have, post something here in the Trades and Wishes board and I'm sure someone can hook you up.
If you have a question, and don't want to post a thread for something simple, PM people here who are online (the green light in the lower left corner of each person's post shows if they are currently online).