I have to embroider a small logo on cuff , where I have to embroider it? right or left hand? Sometimes I saw it on right hand , so when you greet people they see the logo. Thanks.

Copied and pasted this Placement guide for you.

SHIRT CUFFS - To place the monogram in the top center of the wrist, start 1" from the center of the cuff toward the buttonhole and 1/4" to 1/2" above cuff edge. The bottom of the letters should fall at the bottom of the cuff.