1.click on play
2. look at the right corner of the screen where you will see CHAT,SLOTS,FULL SCREEN, OPTIONS
3. then click on slots TA-DA
4.now give me a card for helping.
The first 3 steps above are correct
Though it only works on the new version of the game online, apps and the old version don't have it.
I know you can do it on the android app