A speech coach asks for a shorter explanation of signposting: "Signposts are brief phrases that tell listeners where the speech is going, remind them how the current point connects to the claim, or mark a transition. My draft says 'first,' 'next,' and 'finally' nine times and also repeats the full thesis after every example. Useful signposting reduces cognitive effort, but excessive signposting consumes time and can sound mechanical. The goal is orientation, not repetition." Which revision best keeps the function and caution?