Step 1 - Wash and condition hair. Try shampoos and conditioners that moisturize and hydrate. Also deep condition at least once a week. Healthy moisturized hair is humidity' s weakness.
A good deep conditioner is Garnier Fructis Sleek & Shine Fortifying Deep Conditioner 3 Minute Masque.
Step 2 - Apply a leave in conditioner.
( Leave in conditioner is good for your hair's health by fighting against humidity and slightly weighing your hair down. )
For leave in conditioner you can try Aussie Leave In Conditioner Spray.
To protect your hair you can try KQC's Heat Protectant or Aussie Sydney Smooth Heat Protector.
Step 3 - After that using a widetooth comb or your fingers, begin to blow dry your hair until it is about half way dry.
Step 5 - Now section your hair using hair clips. Create 4 sections. (Two at the front, top half of head and two at the back, bottom half of head.
Your gonna need a brush, a bristle round brush which looks like this.
Step 6 - Using your fingers pull the hair taut and blow dry the roots of each section.
Next pick up the big round brush and proceed to blow dry each section until completely dry.
This works best if you slightly wrap hair around the brush and blow-dry on a lower setting pulling hair away from head, instead of brushing straight down.
Finally after your hair is dry completely, spritz your hair lightly with hair spray
and then brush through it. Now, spritz your brush lightly with hair spray and gently, work your brush from root to tip. This step helps hold hair in place without that cakey, hard effect simply blasting hair spray can leave on hair. For hair sprays you can try KQC's Hair Spray which is also a heat protectant or Tresemme's European Hair Spray, Extra Hold (can be found at drugstores.)
Tips
CONDITIONER IS KEY !
For extra shine to your hair, squeeze a drop of your fav. anti-frizz or shine serum to your hand and rub your hands together. Then lightly and gently run hands through your hair, from root to tip.
Too much of anything is never a good thing. Too much product is going to make your hair look greasy. Too much styling over time will make your hair will look damaged. Give you hair a break a few days a week by wearing a chic bun or braid !
Warning
Remember not to burn your ears or your face while straightening.
You should use protective spray/cream. Make sure the cream is massaged in or else it will make hair greasy, or give it that greasy look.
Make sure your hair is not wet unless you have a wet/dry hair straightener.
Make sure you use hair products in your hair before you straighten your hair so you don't damage it.
Use some heat protecter cream before straightening your hair.
