When standing in queue and daydreaming, someone might get your attention from far away by doing using what technique?
Options:
- become impatient
- whistle
- daydreaming
- give up
- look around Let's think step by step:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
One can get attention when he whistles. one who whistles can be easily noticed by someone who is standing in queue. So, the answer is whistle.