If you were asked to give one advice to Executive or personal secretaries/assistants, what would it be?

For me, my advice in general would be is that even if you're doing an eight-to-five job, treat yourself like a boss. Do Not be arrogant, but be sure of what you want and don't allow people to run anything for you without your knowledge.

Don't hesitate in taking initiative, frequently taking relevant knowledge/training and skills, and try to go for extra mile.

plan his day ahead and use time efficiently