New growth or fly aways?

So hard to tell if these hairs sticking out are fly aways or new growth. I’ve been using the 5% minoxidil foam for just about 3 1/2 months now. How do you truly tell?

So hard to tell if these hairs sticking out are fly aways or new growth. I’ve been using the 5% minoxidil foam for just about 3 1/2 months now. How do you truly tell?