1. I saw a guy lingering at your apartment's door. Should I call the police?2. After the basketball game was over, hundreds of fans stuck around in the stadium asking basketball players for their autographs.3. Show host (talking to the audience): After the show please stick around. We will be having a raffle draw.
 linger stick aroundstick around 是徘徊很好的翻譯。
It gives the illuion that you've computed the entire answer immediately.