Mixed baby hair ...

Adriana

My son is 8 months he’s Guatemalan Caucasian ( mom ) and African American ( dad )

I have straight thick hair his dad has thick curly hair

When his hair is dry it is straight but it’s curly on the top when it’s wet or when he sweats at night . I’m not to sure how to care for his hair I’m not to sure wether it’s straight or if it’s actually curly and just need to grow more... any tips ?