I'vecommented on some peoples' answers, but have not answered this myself, so lest I be a hypocrite, here I go-
Do you believe in love at first sight?
Not love, but definitely an instant mutual connection/attraction. Not all couples experience it, sometimes the relationship starts and grows naturally.
How do you show someone you are interested?
make time for them, and do nice things for them. Eventually, it may get to the point where I just tell them, if things don't just naturally end up in an obvious understanding. (I mean if we're hanging out and all of a sudden we're holding hands, I think it's obvious!)
Is there such thing as a perfect relationship?
no. like Liah, said, people can be perfect for each other but perfection is not something someone can undertake as a goal.
How do you know when someone thinks you're attractive?
They tell me...
How do you know it's right?
I don't know. There have been relationships that I felt were right, only to fall apart years/months later. You just have to take things one day at a time, because the second you put a label or status on something, life throws you a curve ball.
Could you date someone who has been only your friend for a long time?
probably. I don't have any friends like that now that I could see myself with, but hypothetically speaking, sure.
What do you wear to attract the opposite sex?
something that's a nice color that compliments my hair and eyes, and flatters my figure.
What makes someone sexy?
BJ had a great answer- Being themselves.
Are you uncomfortable staring in to someones eyes who likes you?
If I don't like them back.
Do you come across as confident, sexy, friendly, subtle, or innocent?
Friendly and innocent, I think. It must be the glasses. People just assume at first that I'm a naiive bookworm girl. I remember in High School , some girl thought it was weird that I said the word "penis" . She thought I wouldn't even know what one was or looked like. I was like COME ON!!
When someone catches your eye, do you try to make eye contact or avoid it?
Depends on if I'm in an environment where I feel comfortable, and how much I like the person.
What makes you sexy?
um... I don't know! Ask my b/f!
Do you believe in soul mates?
like others have said, I believe there are several compatible partners for any given person.
How many people have broken your heart?
a few.
Would you ever cheat or have you ever cheated?
I did once, and will never again.
Have you ever loved someone who didn't love you back?
no.
Is there ever a happily ever after?
no. that makes it seem as if there's some sort of level of love to attain, and once you're there, you don't have to work anymore. maintaining a relationship is an ongoing thing.
Do you want to grow old with someone or be single?
grow old
Are you a hopeless romantic?
nope
Describe your dream person.
sensitive to my feelings/needs, funny, cute, smart, good in bed

Oh, in other words- My man!
Are you open or closed because of past hurt?
I'm still pretty open.
What is your philosophy on love?
It's not some magical goal you reach then sit back and be happy forever. you must always pay attention to potential problems, and remember it's often the simple things that matter most.
Who would you die for?
Brian, my mom, dad... that's probably it.
Who do you secretly yearn for?
Niel Patrick Harris. <--- LOL @ BJ! that's gotta be a joke....
seriously- I don't really secretly yearn for anyone, lol!
Would you change yourself for someone you loved?
If I knew that the thing to change was negatively impacting myself and my relationship, then I'd try.
Would you give up a dream for someone you loved?
maybe. I really don't have any big dreams to give up.
Would you quit a job for someone you loved?
yes, if he wanted me to quit for a good reason (If he was going to get a big important job somewhere and we needed to move, and provided that we'd have enough money to live).
The thing you love about being single:
I can go wherever I want whenever I want and see whomever I want. But I don't feel the need to see other people or go too many places now that I have my man at home.
The person who's on your mind right now:
Brian! <3
EDIT: I just realized that a bunch of questions aren't on here... I copypasta'd from Liah... I think I'll have to re-do this and answer all the questions.