Minimal hairstyle means that there were almost none or just a bit of efforts done to make your hair together. That means your hair has no decor or complicated weavings/braids. That means it won't take much time to complete it and you will still look chic. With that very same minimal chic I love so much.
Minimal hairstyle doesn't mean you must have minimum hair, lol. You can go for your usual hair combos but this time make it simpler, putting fewer efforts into perfection, letting your hair be free from any "duties" to look flawless. Try it with messy updos, cute baby-buns, your casual ponytail or bob-cut.