Also, you can learn a lot about your opponents' hands by monitoring which bonus cards have been used. Adjusting to the dynamics of the game. An opponerummy withdrawal 50nt may be keeping a certain bonus card for a calculated move later in the game if you see that it hasn't been used yet. You can modify your own approach by keeping an eye on these dynamics, possibly playing more aggressively or withholding some cards to trick your opponents into showing their hands.