Please answer the following question by reasoning step-by-step.
When standing in queue and daydreaming, someone might get your attention from far away by doing using what technique?\nOptions:\n- become impatient\n- whistle\n- daydreaming\n- give up\n- look around

whistle
One can get attention when he whistles.

one who whistles can be easily noticed by someone who is standing in queue.

.

Final answer: whistle