keep_one's_eyes_peeled
1. [ verb ] pay attention; be watchful;(colloquial)
Synonyms: keep_one's_eyes_open keep_one's_eyes_skinned
Examples:

: "Keep your eyes peeled for any policemen"

Related terms: watch colloquialism
Similar spelling:   keep_one's_eyes_open
  keep_one's_eyes_skinned
  keep_one's_eyes_off
  keep_one's_distance
  keep_one's_hands_off