He saw each blank card as a challenge, to amuse and entertain.

As he mentions their fortunes, another blank card falls from her sleeve.

Otherwise, a blank card would be revealed.

There are also five blank cards so that readers can fill in their own statistics and those of their friends.

With each sentence presented on a card, participants were cued to recall the memorized end-of-sentence words in their original order by a blank card at the end of a series.