lit. don't tie your shoe-laces in a melon-patch / fig. don't do anything that might arouse suspicion / innocent acts may be misconstrued
瓜田不纳履,李下不整冠
guā tián bù nà lu:3 , lǐ xià bù zhěng guān
lit. don't tie your shoelaces in a melon patch, and don't adjust your hat under a plum tree (idiom) / fig. don't do anything that might arouse suspicion / innocent acts may be misconstrued