From Homestar Runner Wiki
Welcome to the Welcoming Committee of the Homestar Runner Wiki. If you'd like to join this committee, just put your name at the bottom of the list below!
 Who We Are
The welcoming committee is a group of people who kindly greet new users and help them get started (if needed). If you want to help out, the most obvious thing you can do is post welcome messages and be friendly and helpful with new users you meet.
Note that joining the committee confers neither responsibilities nor privileges, but members are expected to do some welcoming — we don't want to simply clutter up this page with member names.
You should also have a basic technical understanding of the wiki so that you can answer any questions an inexperienced user might have.
 Don't Bite
"Never attribute to malice that which can be adequately explained by stupidity." -Hanlon's Razor
...Behavior that may appear malicious to experienced Wikipedians is more likely due to ignorance of our expectations and rules. Even if you're 100% sure that someone is a worthless, no-good, low-down scum-sucking Internet troll, vandal, or worse; comport yourself as if they're not. By being forgiving, instructive, and respectful, you come away with much more dignity, and you reflect well on our project.
Basically, just don't get frustrated if a newcomer or some IP makes a mistake- let it slide and give him a friendly note telling them what they did.
 Standards for Welcoming
Users are automatically provided with helpful links and information by the bot First Time Here?, and the members of the welcoming committee are encouraged to offer a more personalized welcome and help. Be as kind and welcoming as possible and answer any questions they might have.
You might begin with a general greeting, followed by some question (to get them to actively respond and participate) regarding themselves you might have gleaned from an edit they have made. Obviously, once someone has set up a user page this is easier, but look at edit summaries or even the type of edit they have made to find a point of conversation. ("You seem pretty good with grammar. Do you take advanced language classes?") Just as you would in an in-person social environment, engage the new user in some form of interaction.
Remember, the goal of the welcoming process is to guide the new user toward active positive participation in the wiki. Suggest projects which might be a good fit for the new user. Point out pages which need cleanup and any other areas of the wiki you think the new user might be interested in. Channel their initial interest into quality participation.
(Please remember only to join if you plan to do some Welcoming)