One of your ke decisions will come when deciding whether or not to stay in the pot when challenged with a bet. It's not always a problem: if you think you're leading, feel free to raise. The difficulty arises when having hand that's probably not in the lead, but could become the winning hand by catching a needed card. such winning card are called 'outs'. 

Omaha Poker is often compared to Texas Hold’em as the structure of the game is very similar, You have hole cards, a flop, turn and river with the same betting sequence. An Omaha poker game is, however, played with 4 hole cards rather than the two downcards in the Hold’em rules. A player is still trying to make the best 5-card poker hand from the 9 available to them BUT in this variation of the game two hole cards MUST be used - no more, no less.