I have tried this on the stage but it does not get very good response maybe because due to the method I use to reveal the spectator card is not strong enough... do you guys and gals have any idea on this, I will appreciate some ideas that does not require lots of setup.

I reckon Lee Asher's Thunderbird.. if you are to reveal 4 cards. Hell you're going to need to practice A LOT to initiate this trick.