keep one's eyes skinned vs keep one's eyes open

keep one's eyes skinned and keep one's eyes open both are verbs.

Word	Noun	Adjective	Verb	Adverb
keep one's eyes skinned	No	No	Yes	No
keep one's eyes open	No	No	Yes	No

As verbs, keep one's eyes skinned and keep one's eyes open are synonyms defined as:

keep one's eyes skinned and keep one's eyes open: pay attention; be watchful

Other synonyms of keep one's eyes skinned include keep one's eyes peeled.

keep one's eyes skinned (verb)	keep one's eyes open (verb)
pay attention; be watchful	pay attention; be watchful