Oh the beauty of a child who communicates! In theory, this should mean fewer tantrums... right?
1. Dump it
Food. Toys. Clothes. Well, anything that can be dumped.
2. Jamie do it
He's two, of course he wants to do it himself.
3. Open it/Close it
These mean the same thing, and cover the scope of demanding I open a sealed granola bar and also put back together the pieces of that granola bar that he has crumbled.