At my first job, at a consulting company, they had a good rule, which was basically "show initiative when asking questions". What this boils down to is if you ask how to do X, you should first research and think about it, and then you can say "I think Y is how I do X, am I on the right track?"

A lot of the time, you'll answer your own question getting to Y. If not, it will save the person you're asking a bit of legwork, and show you are not trying to have them do your job for them and have respect for their time.