The best framing worker I ever knew, was and artist.
Best, as in hard worker, quick, efficent, and very very accurate. He never listened to any music that I didn't want to hear, in fact he never listened to music.
He was very quiet, and didn't socialize, just did the work.
It was a production shop and he was knocking out more work than two of us....
Like I said, he was a serious artist: steel scupture and bronze castings. He was also deaf and mute.
I was the first person he had ever worked with, that he could talk to. That really stoked his coal. He had a very nice wife too who was a nurse.
But I digress. Things you can ask:
"Are you ready to go take your drug test right now?"
"Please write for me a page in your own hand-writing, where you see yourself fitting in our business in five years, what quality do you feel that you bring to this business, and why do you want to work for us specifically." Note: Please allow two weeks for us to have your handwriting analysed.
"What are your teachers going to tell me about you when I interview them?" And request a curriculum vita (high school transcripts). Yes you can and should from anyone under 22. They will tell you VOLUMES about a person of that age group.