as a President Director's secretary you will get a lot of task or request from his direct report or intern office so how do you manage it?

My first priority is my boss so i will focus on him first than if there any task from the other, i will do FIFO(first in first out) but still notice about the urgency.

I will do to manage daily routine first, as a routine they might not spend a lot of time, than do the others as the urgent first.