Here is an interesting video of a blackjack game, secretly filmed at a UK casino, where Derren Brown cleans up using his unique card counting trick and is then asked to leave by the casino staff.
Derren Brown is an English psychological illusionist and a self proclaimed mind reader. He has a TV show on Channel 4 in the UK called Derren Brown: Mind Control. He states that he achieves his results using a combination of magic, suggestion, psychology, misdirection and showmanship.
Watch this 4 minute video and you may pick up on a few card counting pointers that could improve your game. Good Luck!