Simply assume an expression of complete exhaustion lightly tinged with absolute hatred for the person you are dealing with. Then add a thin veneer of obligatory civility.
The agent will recognize a kindred soul.
In all seriousness, being able to 'deaden' your eyes, removing all expression, will get you past most government-type people fairly rapidly. I don't have an explanation for this. Maybe the person sees that there will be no satisfaction in harassing you?
I've perfected my customs passing technique.
Simply assume an expression of complete exhaustion lightly tinged with absolute hatred for the person you are dealing with. Then add a thin veneer of obligatory civility.
The agent will recognize a kindred soul.
In all seriousness, being able to 'deaden' your eyes, removing all expression, will get you past most government-type people fairly rapidly. I don't have an explanation for this. Maybe the person sees that there will be no satisfaction in harassing you?