Cards are easier to flip one page at a time than paper. Just hold the stack in one hand. Make the deck slightly uneven by shifting the cards a little so instead of having a perfect stack they create a sloped edge. This will make it easier to use the thumb to flip them one at a time. Flip one way turn the stack over flip the other. Shuffle and flip to the hearts content.
Then play with them for activation.
Purpose would be whatever you're trying to gain from the cards. E.G to learn the language so I can converse easily with a native speaker.
Alex