This will require you to be present at games, recitals, and anywhere else that is not "your turf." Also you need to take a proactive interest in visitors (whether they come with a friend or alone), making it a point to remember their names. Keep a little spiral notebook in your car. After meeting new people, write down their names and ALL information you learned about them. This simple action will help you recall their name and their story when you see them again.
2) CONNECT WITH CURRENT KIDS
This is essentially why most youth pastors are hired. Take them to breakfast, meet them for lunch, call them on the phone, write them encouraging notes (hand-written is best).
3) COMMUNICATE WITH ADULTS (PARENTS & LEADERS)
Send the parents a monthly newsletter (www.theparentlink.com offers a great one every month that you can modify with your specific content). Send the leaders a weekly email communicating expectations, appreciation, and information about upcoming activities/opportunities.
4) PREPARE FOR WEEKLY PROGRAMS
Write lessons, do research, visit the websites of other churches for ideas, and gather necessary supplies in advance.
5) PLAN FOR EVENTS & TRIPS
Think ahead: gather relevant information, budget with accuracy, solicit feedback (from students, pastors, parents, etc.), creatively promote, and set achievable goals.
I believe that all this should be tied together with a weekly review (see especially Getting Things Done by David Allen) on the last day of the week. This will ensure that all the plates you're spinning are receiving proper attention, but the added benefit is that you recognize that progress is actually being made.