All movements in Yahoo! Kids Games involve either "drag and drop" or double-clicking.

In games that involve moving game pieces (Chess, Checkers, etc.), click a game piece, hold down the mouse button, move the piece, and then let go of the mouse button.

In games that involve placing game pieces (such as Reversi), click the square on which you wish to place the piece.

In card games, you can select a card by double-clicking it.

Other actions (rolling dice, passing cards, etc.) are performed by clicking appropriately labeled buttons.