A sidequest is easiest to plan when it has four parts: a clear action, a time window, a proof moment, and an invite. If any part is missing, the idea may stay vague.
Write the action
Use a verb. Find the bakery. Reach the park. Take the photo. Bring the snack. Vote on the route. Clear actions make the quest easy to understand.
Choose the proof
Decide what counts as done: photo, note, vote, receipt, location, or group arrival. Lore keeps that proof attached to the quest.