Appearing feminine takes time, effort, and expense.  Not to mention thought and planning.  There are a hundred things that females do as a matter of course every week in the pursuit of style.  

Take care of your body!  This cannot be overstressed, diet definitely has a great deal to do with how you look.  I know that there are "Chubby Chasers" out there who will scoff at this caution, but staying away from fast food and moderate exercise are key to looking good.  If you are dedicated to appearing femme, you should think before you shove that donut into that cockhole under your nose.  You don't have to run miles, but staying active helps tone your legs and butt so that they don't sag.  Start today, take the stairs, go for a short walk.

You might appear 100% woman from ten feet away (or in a photo), but DON'T SMELL LIKE A MAN!  Do not use caustic antibacterial soap when you bathe, they dry out your skin.  Instead use Dove or Olay, and use a washcloth or bath brush to clean your pores. Moisturize after bathing, it prevents wrinkles, crepey or flaky skin, and if you live in a dry climate this is doubly important. 

Brush your teeth and floss!  If someone sitting two rows away from me on an airplane doesn't take care of their mouth, I can smell it.

Wearing a nice perfume will not cover up the stink of sweaty armpits or a dirty crotch.  But it can offer a finishing touch to how you smell.  Scents are chemistry and what works for some will not work for others.  Lavender works for me, but that may not work for you.  The cost of your signature scent is not an indicator of how it will meld with your body chemistry.  Often an inexpensive body spray from from the grocery store will work better for you than a $200 per ounce perfume.

Your hands and feet will belie your true self.  Wear gloves when doing dirty or greasy work.  Keep your fingernails clean and manicured.  Moisturize your hands so that they don't look like lobster claws.  Women work on their feet more than the average man and it shows.  Protect them from injury.  Keep the nails trimmed.  There's a lot more to it than just painting your nails huh?

Fashion is something that will stymie most gurls.  The most common mistake is overcompensating (heels and hose are not always the right idea).  Choose your outfits according to where you'll be; shopping and clubbing require different clothing.  If you watch Lifetime Network movies, it will give you ideas about age appropriate style.  Amazon, Ebay, HSN and QVC offer great ideas and deals on everything you could ever need.  In short, "Slutwear" will get you clocked faster than anything else.  The hard part will be figuring out what sizes you wear, once you breach that obstacle you'll be on your way to finding your own look... and crushing it!