Hi Dj -
The physical bit of dealing (the shuffly- throwy cardy bit) can only come through tedious repetition, but you're probably just talking about being a Nice Firm Rule-maker and table-controller. Knowing the TDA rules can't hurt, and having worked as a dealer for a little while, I can say that just saying what the ruling should be in a firm "I know what I'm talking about" voice often stifles the need for a floorman to come and repeat what you just said.
Rules like misdeal rules vary from cardroom to cardroom, but personally, if a card of the flop, say, is exposed before everyone has acted, I like the 'shuffle it back in to the stub of the deck, thereby keeping the possibility of the same card re-emerging' rule: burn +3rd card from bottom, for example, eliminates the possibility of the accidentally exposed card being dealt, and gives information that shouldn't have been there to begin with. This is a personal favourite one of mine, as it's clearly fairer to have an equal probability of the exposed card actually appearing on the flop... When dealers don't really know the rules off by heart, it's really a common sense call in almost every situation.
Oops that turned into a bit of a rant, but best of luck in the dealing world, and if a player is just an argue-y type, just call the TD. Or if you're at a home game, tell them to be quiet or they'll get a 10 minute penalty and no jaffa cakes
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