Players can determine what melds they are trying to form or which suits they are concentrating on by closely observing the cards they draw and discard. With this knowledge, you can modify your own approach approram slots in laptoppriately, either by blocking their possible melds or by predicting their next moves. A good way to keep track of your opponents' moves is to mentally record the cards you've discarded and how often particular suits or ranks are used. An opponent may be on the verge of finishing a meld with those discarded cards if, for example, they routinely pick up cards from the discard pile but infrequently draw from the draw pile.