Steps

1. Speak well. Girly girls don't swear every time they get annoyed or make a mistake, so don't. Yes, swearing is a hard thing to stop, but this is a huge step to becoming more like a girly person.Replace them with milder words such as "Dang!" and "Airhead"-something along those lines, anyway. Talk clearly, and find the right volume-don't burst anyone's eardrums and don't make them have to lean forward to hear you. When you talk, look the person/people right in the eye and keep your head up.
2. Buy girly clothes. Ditch the baggy jeans and tiny t-shirts. Don't panic though-dressing girly doesn't mean frilly pink skirts and dresses. Dressing girly is like mini skirts,leggings,flip flops,in style clothing is definitely girly. The stores to look for are American Eagle,Holister,Aeropostale,Abercrombie,and even if your young in age Limted Too.
3. Girly girl make up doesn't mean you have to wear the "full fledge face" but at least try mascara and lipgloss.
4. Be happy. It doesn't matter if you aren't actually in such a good mood-just put a smile on your face. A frowning, sulky and sullen girl is definitely not a girly girl. Learn to be thick skinned-being touchy is not the way to go. If you really can't put on a smile, at least explain to people why you're upset, so they'll understand and won't think of you as moody. If you're going through that time of the month or you don't want to tell anyone about why you're upset, try to do things to make you feel better. Write down your feelings in a diary (that's girly!), listen to music, treat yourself, take a steamy shower...you get the idea. Whatever happens, try your hardest to keep smiling.
5. Look after your hair. This is one of those other huge and difficult steps. Look after your hair well. Make sure you comb it with a wide toothed comb or a suitable brush, wash it a few times a week depending on your hair type, and don't use too many hair products. Don't straighten your hair everyday-tight curls are cute. Unless you have a fringe, bangs or somehting that's MEANT to be on your face, don't leave hair on your face. Cute styles are the side ponytail, french braid, two low ponytails, or just an ordinary ponytail. Ribbons, headbands and cute hair ties add a girly look. Experiment, once again. If you're sick of your hair, get it layered or go for a drastic cut. Ask your hair dresser what they think would suit you. They know what they're doing...really.
6. look your best stay fit and exercise and get into girly sports such as gymnastics, ballet, figure skating,and cheerleading. And be partially picky about the foods you eat. a girl is very picky about the foods she eats so it would be smart to eat low fat foods and to not eat junk that would effect your figure.