Find someone who actually knows what they want you do. Listen, and do it. The hard part is finding someone who has a clue what is going on...
I had a horrible time at work experience in a legal office, I was given vague orders in the morning, and I had to spend either the whole day trying to figure out what to do, or sitting around as I worked too hard and finished six hours early.
Building Site work is great though, clear, second by second instructions, gentle enough pace of work and no responsibilities whatsoever.
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The scientist only imposes two things, namely truth and sincerity, imposes them upon himself and upon other scientists - Erwin Schrodinger
Member of the WP Strident Atheists