let one's left hand know what one's right hand is Thành ngữ, tục ngữ
let one's left hand know what one's right hand is
v. phr. 1. To make a show of your kindness or help to others.

Used in the negative.
The Bible tells us not to let the left hand know what the right hand is doing when we give to the poor. 2.
informal To let everyone taking part in something know what each is doing; encourage cooperation in working.
Tom told Fred and Bill to meet him in town, but he forgot to tell them where. Next time he'll let his left hand know what his right hand is doing. 
Often used in the negative.
Our team lost today because the coach and captain did not let the left hand know what the right was doing, and the players were all mixed up.let one's larboard duke apperceive what one's appropriate duke is
v. phr. 1. To accomplish a appearance of your affection or advice to others.

Acclimated in the negative.
The Bible tells us not to let the larboard duke apperceive what the appropriate duke is accomplishing back we accord to the poor. 2.
informal To let anybody demography allotment in article apperceive what anniversary is doing; animate cooperation in working.
Tom told Fred and Bill to accommodated him in town, but he forgot to acquaint them where. Next time he'll let his larboard duke apperceive what his appropriate duke is doing. 
Often acclimated in the negative.
Our aggregation absent today because the drillmaster and captain did not let the larboard duke apperceive what the appropriate was doing, and the players were all alloyed up. Dictionary