Help: Pawn Sensing.

Hi

I would like my AI BOT when not sensing, to rotate left and right.

I have seen a example, where if the player is far enough away, they somehow turn sensing off, but could not make heads nor tails of it.

What I would like to know, is if my BOT no longer sees you, he goes back to scanning left and right.

Is there a possible way of doing this?

Regards