Read the dictionary definition of riffle. All definitions for this word.
1. shuffling by splitting the pack and interweaving the two halves at their corners
2. a small wave on the surface of a liquid
3. shuffle (playing cards) by separating the deck into two parts and riffling with the thumbs so the cards intermix
4. twitch or flutter
1. the paper flicked
5. stir up (water) so as to form ripples
6. look through a book or other written material
1. He thumbed through the report
2. She leafed through the volume