Common declarer bad habits

Linda and MPP are giving away (sorry, making available free of charge in an online format) old Canadian bridge magazines - read more about how to get them on her blog.

I was reading the July 1996 edition and Barbara Seagram's article is even more true in this decade of online and offline bridge.

When dummy comes down, you

1. thank partner and then immediately call a card
2. immediately call a card (who has time for civility?)
3. panic and then call the wrong card
4. analyze the lead, count your losers (or winners in notrump), develop a plan for disposing of those losers (or develop the tricks needed) and then call a card.

You'll have to read the article for the right answer and other examples of poor habits at trick one.