Answer:
Signposts are short statements which tell the audience where the speaker is in the speech. Often times signposts are number of words which suggest that what the speaker is about to say is important.
Examples:
Lests FIRST take a look at the nature of the problem
The THIRD warning sign is giving away one possession
And FIRST the MOST IMPORTANT THING to rember is child custody battle injure the children
TO BEGIN WITH we must examine the engine of the car
Hope this helps :)