We've been invited to a baby naming ceremony in August, which is going to be lovely, but I'm a bit stuck on what to wear. It's taking place at the parent's home, mid-afternoon, followed by food. DH is wondering whether to wear a suit - possibly too formal? I'm currently thinking something like a maxi dress and shrug (hopeful about the weather) but am really not certain if that will be too casual, and if I should dress up a bit. Any suggestions gratefully received.