Table information will be displayed at the top of the window such as the game type, stakes, table name, current hand number and previous hand number.
To sit at the table, click on an empty seat displaying a "SIT DOWN" button. After clicking "sit down", you'll be asked how much money you'd like to bring to the table. If, at any point in the game, you wish to bring more money click the "$" button in the lower-left hand corner.
Once the game begins you'll know it's your turn when the option to either "Post Now " or "Wait for big blind" appears at the bottom of the screen. The next time your turn comes around you'll receive different options, Fold, Check and Raise/Bet. If you're playing in a No Limit Game you'll also see a tab to "raise other".
In-game chat and winning hand information can be seen in the chat window located in the lower right-hand corner.
For a complete list of game types available click here.