He should act in such a way that both friends and foes may not know his intention before the commencement of the act. Let them know it when the act has been commenced or ended.
नास्य कृत्यानि बुध्येरन् मित्राणि रिपवस्तथा। आरब्धान्येव पश्येरन् सुपर्यवसितान्यपि॥