Idiom Definition:
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"to keep your eyes peeled (for something or someone)"
to watch carefully (for something or someone)
Synonyms:
acute, alert, attentive, aware, heedful, intent, listen, listening, ready, mindful, observant, perceptive, sharp, vigilant, wary, watchful, wide-awake
Literally,
keeping your eyes peeled. - - - - ->