Aaaand three months later:
What I try to do whenever I'm in a leadership position and helping people through a task, is:
1) Starting off by explaining how the task is supposed to go, just so everything is perfectly clear
2) Making sure everyone knows that I'm always available if they have questions, then leaving people to do their own thing
3) Popping in periodically to see how they're doing -- trying to be friendly and getting to know who they are as people, and what their strengths and weaknesses are
4) Taking into account how they operate and adapting my style accordingly -- e.g. more forceful if they need someone to be forceful, or checking in on them more often if they get distracted easily
If it's a more long-term situation, I may ask them what I can do that would be most helpful to them, as a boss/supervisor -- as well as what is unhelpful and counterproductive. Then I see if their requests are reasonable, and I adapt accordingly.
(Note also that I'm not actually a manager, and have never explicitly been in a managerial position -- but I enjoy supervising teams and I'd like to think I'd be a good manager someday)
Edit: Considering [MENTION=19948]Showbread[/MENTION]'s current summer job, I summon her to answer this question as well, from an ESFJ perspective