No matter the size of your ministry, you'll never get enough face time with students, parents or leaders.
However, making time to meet one-on-one with concerned parents, troubled kids, leaders (for training and relationship building), are all very beneficial to the health of our ministry.
I usually try to meet over coffee or lunch to provide a relaxed environment and a more enjoyable time together.
(This is also important with other staff members and leadership in church. Talking to people in person has not only solved problems and clarified confusion, it's provided some very helpful ideas and opportunities!)