1. Follow the steps to act as your page

2. On your profile, locate where you would post a status

3. At the top of the box, click "Offer/Event" on the right

4. Choose "Offer"

5. On the right side of the box, give your offer a title

6. Add a description

7. Choose an image 

8. On the lower left, choose an expiration date for your offer

9. Select a limit or "no limit"

10. Select "more options" if you'd like 

11. Click "create offer"

Caution: Once you create an offer, you cannot delete it. Make sure it's ready (and has an expiration date) before you create it!