You should have your returning team come and give a tutorial to those new members...have them tell stories about the competitions, the judging, and whatever else they think is unique to the FIRST Robotics Program. Does your team have subteams? If yes, then have the new members walk around and see what each entails, if not then talk to them about what each team does. I think if they are willing to learn, you will have an abundance of interest.
Alicia Albrecht
Electrical Subteam
The Robettes 2177
If you have any questions, please feel free to email me
amariealbrecht@yahoo.com