A few weeks back Alice's daycare held a week of special activities. On the last day, each child was allowed to invite a relative (not boring old parents who visit every day) to tour the classroom and share a snack.
Alice chose to invite Gran and Grandad, who of course come as a pair!
Alice and all her friends were very excited all day long, and even prepared drawings for the guests. But as soon as they snuck their heads in the door, she was all giggly with her pals and averting her eyes. It took 15 minutes or so, but she warmed up enough to greet them properly.