Plus a Pro Tip: 3. Start ahead of time
Facebook: consider making a seasonal cover photo for the occasion.
Twitter: you could do the same with your header image or background image.
Shoppers Drug Mart example ↓
Start ahead of time - Walmart started three weeks ahead of time last year. They have over 26 million fans to date, so they are a great example to follow.
This is an example of a campaign getting users to post on their wall. When you have a significant fanbase, you will have fans willing to post content on your wall, especially if there’s an incentive. Walmart asks fans to post dessert creations for the chance to have their entry featured as a Meal Solution. This is effective because friends of fans will see that they’ve posted on Walmart’s wall, prompting them to take a look and possibly like the page.
Check Out “How to Get People Sharing Your Valentines Day Content”