Since it's the day after a big holiday, we're going to take it easy on you. You're probably exhausted, and there are still dishes to do. So...
The opponents have opened the bidding, and we are NOT going to go quietly--if we have a choice. And what are our options?
--Pass. This is choice #3 for members of the Clint Eastwood School of Bidding.
--Double. A Take Out Double promises shortness in the opponent's suit, four cards in any unbid major (usually), and an opening-ish hand.
--Overcall. Naming our own suit. We need a Darn Good five plus card suit and 7-17 pts. (10 plus at the 2-level). The lower your point count, the better the suit should be. One reason we overcall is to give Pard a possible lead, which is one of the (many) reasons we want a quality suit.
There are other options, and we'll add them to your arsenal gradually. But today, we deal with Overcalls. Ready?