Im wondering if in my header the best way to display the subcategories is to click on the categories or displaying the subcategories when roll-overing on it?

WOMAN MAN KIDS are my categories. Subcategories example: Dress, jeans, tshirt...

Thanks,

I'm wondering if in my header the best way to display the subcategories is to click on the categories or displaying the subcategories when roll-overing on it?

Woman, Man and Kids are my categories. Subcategories example: Dress, jeans, tshirt, etc.