Receiving a Blessing
We should all pick up the habit of blessing others when they sneeze. If not to wish them better health, then to score a free dinner at Red Robin, which was what happened to the OP. As she and her family were passing another patron, they let out a fairly loud sneeze, to which the OP responded with “bless you.”
When it came time for the OP and her family to settle the bill, they learned that someone already paid it for them. It turned out that the man, who was presumably touched by the innocent blessings sent his way, settle the bill for her. If you give blessings, the universe will bless you back in ways you might not imagine.