Just as a matter of comparison:
I have been working with extracted teeth I have collected from assisting on surgical extractions on periodontal patients. I have performed composite and amalgam restorations, root canals and placed temporary crowns on natural teeth mounted in lap stone. I perform well on study models preparing and placing temporaries. I am a whiz with a lab handpiece and the model trimmer, and I have chairside experience as an assitant with real patients and standing in for a dentist on typodonts with real and artificial teeth.
I have also worked as a clock repairman manipulating delicate electronics with fine precision instruments.
I'd say the teeth and the clock repair are the strong ones for me, but I can also talk tools and brick work, sanding and routing, finish work, upholstery, painting, and ceramics. I've done some carving, sewing and collage work cutting portions of photographs into precise shapes with an exacto knife.
...this is a long list, I know. But I've thought a lot about this, and if you really dig into your life and past experiences you'd be surprised what you can honestly say about yourself. Also get your hands dirty with dental instruments. You can do everything a dentist can as long as it's not on a living human being (nor animals I suppose...yuk!)
Be creative. Show them that you'll come to school ready to succeed.
They want to know: "Can you form a cavity prep without getting into the pulp chamber?"
"Can you make a temporary that is not going to extend above the occlusal surface and cause the tooth to fall out?"
etc.
Prove it to them.