I really like this tactic from SideDeals.

• Everything above the fold is about the “deal”, which is unknown

• FOMO indicators…

  • “A hand-picked, limited-time deal launches every day at 8am ET.”

  • “300+ Sold on SideDeal”

• Other deals are listed below the fold, providing examples of ‘deal potential’

• You must sign in for the low low price of an email