My two rules for tattoos is that they have to mean something, and they have to be easy to hide.
Right now, I have a tattoo on my hip, and one on my ribs. I'm going to get the two tattoos connected eventually. I'd like more, but I don't know where else I could get tattoos done where it's easy to hide.
On your back, on your bottom Though I would understand why most wouldn't like that... I don't.
Depending how short your hair is, and how often you wear it up you could get one on your neck or just behind your ear.
I've heard of people getting one on the sole of their foot, but I would imagine that would be insanely painful.
"Life is pain, anybody that says different is selling something" ~ Fezzik's Mother, The Princess Bride. ♥
"To die, would be an awfully big adventure."~ Peter Pan
"Do not believe in anything simply because you have heard it.
Do not believe in anything simply because it is spoken and rumoured by many.
Do not believe in anything simply because it is found written in your religious books.
Do not believe in anything merely on the authority of your teachers and elders.
Do not believe in traditions because they have been handed down for many generations.
But after observation and analysis, when you find that anything agrees with reason and is conducive to the good and benefit of one and all, then accept it and live up to it."
~ The Buddha
On the inside of your lip. I mean, just think about your wardrobe and what parts of your body are most often covered, and get a tattoo there. If you have long hair that you usually wear down, you could easily hide a tattoo behind your ear.
I agree with Ryan, look at your wardrobe and what parts of you the clothes you wear often cover and then that'll be the places you can get tattoos. I'd imagine you could get them on parts of your back, your stomach, your thighs, your feet, your neck and behind your ears.
Behind your ear is a great place. I think a small blue star right there would look incredibly classy. Or right on the underside of your forearm--almost on your elbow joint part. if it's small, then it's less easy to spot.