Frequently mistaken for a 13 year old child?

If you are capable of growing facial hair, that will definitely make you look older. If you are not, it can take a lot of time to make facial hair that looks anywhere near realistic.

You can also adopt a more grown-up style. 13 year old boys don't tend to dress in business (or even business casual) or anything like that.

105 pounds sounds unhealthfully thin at your height. I assume that you've already talked to your doctor about this and are dealing with it. But until you put on more weight, pretending to be heavier might help.

Well unfortunately your height cannot be changed - this is because in the bones which support your stature, the epiphyseal plates fuse after adolescence and they cannot grow anymore.

Your weight will probably not change much either or effect how people see you.

Human development does continue to happen as the years go on, so you will probably look older in five years (oddly, growth hormone does change the facial bones in adulthood).

I wonder if your boyfriend would want you to look older. I would say to enjoy it while it lasts.

Try growing a beard and mustache. Get a grown-up haircut.

At 5'5" and only 105 lbs, you're pretty skinny and that makes you look younger. Exercise regularly, eat healthy and try to add some muscle (not fat) to your body.

Dress more like an adult -- less jeans, t-shirts, and sneakers, more slacks and button-down shirts with nicer shoes.

Dont *****. You will probably live to be a hundred and in fine shape.

Dont worry, your face will soon start to show age.

In the mean time, you could make a fortune as an undercover private detective infiltrating youth gangs and finding school drug dealers.

you have the genes that make you look younger.

I have not as drastic but was carded till I was 27. People always guess me as 7 yrs younger. Just had to show my ID card.

try a fake mustache.

Protein. Lots and lots of meant will make you grow. Protein!! Start eating alot and working out frequently and you will get bigger. Make sure you eat healthy (No McDonald's etc.)

Good Luck!

man f what people say to you, you know what you are, your age, and you got a college degree unlike half the ppl that has asked you those question. you don't need surgery. be proud of your self.

ppl mistake me for a boy cause i wear braids and wear boyish clothes but my boobs are freakin big and they are noticeable and i don't understand that.

its cool. enjoy being who you are don't change for no one

work out gain, gain muscle wait. Dress your age, i dont think there is a surgery out yet, theyd have to do your bones and knee. grow sometype of beard out.

I'm so jealous of you. Don't change. When you get older your going to want to look younger anyway.

lol surgery? for that? just enjoy looking young while you can. your age will eventually catch up with you. and you could always pick up smoking. its supposed to make you look older.