Action Details
Requirements and how-to articles for Facebook's action:

paid action
Video posts are one type of post which can be boosted to appear on more peoples' News Feeds than it would do regularly.

You need this to get it done:

Video Post
A video post which you want to be boosted.
Decide whether your goal with this boosted post is to receive more post engagements or more messages.
Post Button (Optional)
Decide whether you want to add a call-to-action button to your post (e.g. Sign Up, Shop Now, Learn More, etc.)
Target Audience
Decide on the audience you want your post to reach (gender, age, location, interests, etc.)
Duration and Budget
Choose how long you want your post to be boosted and what your budget is.
Choose currency, enter payment details and pay.
Tag Products (optional)
If you have a Facebook shop or catalogue, you can tag products in your videos.
Requirements missing or found errors? Report

How-To Articles
A list of useful links for you:

Facebook Ads Help Centre - The difference between boosted posts and Facebook ads
How boosted posts work, and how they differ from regular Facebook ads.
Facebook Business Help - Tag products from your Facebook Page
How to tag products from your Facebook shop or catalogue in your photos and videos.
Link missing here or found errors? Improve How-Tos