As a voter: tell truth from bluff. As the speaker: fool the voters.
Each turn one player is the speaker. WUDD privately gives them a prompt, such as «A time I got lost», and a secret instruction: tell the TRUTH or make up a BLUFF. Both are equally likely.
The speaker may change the prompt once; the instruction stays. They tell the story aloud and may type a one-line headline that everybody sees.
When the speaker is done or the time is up, everybody else votes truth or bluff in secret and may change the vote until it closes.
Then the instruction and every vote are shown. A right vote scores 1; the speaker scores 1 for every player they fooled.