With 4 suited cards in your hand, and 13 cards per suit, you'll have 9 outs to achieve a flush. Flush draw: A flush draw occurs when your hold cards are suited and the flop contains 2 cards of that same suit.2 overcards: If you're holding 2 cards, say an ace and a queen, that are higher than any of the 3 flop cards, you have 6 outs: the remaining 3 aces and queens.Pocket pair: If your hold cards are a low pair (meaning at least 1 of the flop cards is higher, possibly giving another player a higher pair than yours), you have only 2 outs to make 3 of a kind or better.Therefore, you'd have 6 outs for the turn and river. Any of the 3 remaining 5's or 9's in the deck would give you at least a pair. Nothing: If your hold cards are unsuited and lower than at least 1 of the cards in the flop, you have 6 outs to achieve a pair.To tally your outs, you'll need to carefully assess your hand after the flop and then decide what hand you can attain. Under ideal circumstances, 1 of 15 different outs can complete a strong hand. In some cases, you may have only 2 outs, meaning your chances of attaining a desirable hand is remote.
Outs are cards that directly contribute to the hand you're trying to build.