Deep-condition hair at least once a week and stick to minimal shampooing. If your scalp or skin is oily, use a gentle shampoo just on your roots and leave your ends out of it.
Use a wide-tooth comb to detangle hair while still in the shower.
Cocktail some leave-in conditioner and anti-frizz and run through wet hair. Allow it to air-dry so you get smooth, well-behaved curls.