Do not carry expensive things and avoid unnecessary attention.

Poirot examined the table with what seemed to me quite unnecessary attention.

He couldn't afford to attract unnecessary attention or be stopped and get himself tossed in jail.

You will not draw any unnecessary attention to yourself in any way.

And he could not afford to draw unnecessary attention to himself.

He had a marvellous eye for what was unnecessary and great attention to detail.

We might be able to avoid taking a drastic step that would draw unnecessary attention.

"I thought we were trying to avoid unnecessary attention."

I believe it's what you referred to as 'unnecessary attention'.

Things are dangerous enough around here without drawing unnecessary attention to yourself.