It's hard to make events exciting in Facebook. You can plan things down to the smallest detail, but that won't matter if people don't notice your event amid all the puppy videos and heated debates. Facebook may have a simple solution: put events where people are more likely to notice them. It's launching a test that lets you slip events into Stories, turning them into sales pitches of sorts. Share an event as a Story and you can create a flashier presentation with a sticker friends can use to show their interest.