Want a free McDonald's meal? Tell your mum you love her

McDonald's is about to offer its US customers the chance to hug, dance or fistbump their way to a free meal.

The fastfood chain's new 'Pay With Lovin' campaign asks random customers to put away their wallets and instead make their purchase with a gesture of goodwill.

The deal includes completing tasks such as giving someone a hug, phoning their mothers to tell them they love them or describing the best thing about a relative

McDonald's promotion will launch when its advertisement airs during the Super Bowl today, with each store giving out 35 free meals. The number of prizes will gradually decrease up until the offer finishes on Valentine's Day.