My baby 10mo is a happy chappy at home, very vocal with her yayas/babas/mamas etc., lots of giggles and smiles... but, when we are elsewhere she is so straight faced and rarely cracks a smile. She just spends the whole time staring at people and not interacting the way she does with us at home. This is even the case with familiar places and people such as grandparents house.
Is she just a shy baby or is this something I should be bringing up with a dr/health visitor?