1. The lurker in the shadows watched the house intently, waiting for the right moment to strike.
2. I always feel like a lurker when I browse online forums without actively participating in the discussions.
3. The security guard spotted a suspicious lurker hanging around the store after hours.
4. As a lurker on social media, I prefer to observe rather than engage with others.
5. The lurker in the chat room made everyone uncomfortable with their silent presence.
6. The detective suspected that the lurker outside the victim's house was the perpetrator of the crime.
7. I caught a glimpse of a lurker following me down the dark alley.
8. The lurker blended in with the crowd, making it difficult to identify them.
9. The lurker's presence on the hiking trail made me uneasy, so I decided to turn back.
10. The lurker finally revealed themselves when they couldn't resist joining the conversation.