Think about it for a minute. Look at yourself in the mirror. Do you look like anyone else that you know? We all look so different though essentially we have been endowed with the same external characteristics, which are one nose, one mouth, two eyes and two ears.
So in spite of having the same building blocks, if we can look so different why do we have to sound alike? Think about yourself in a different way. Do not just consider your likes and dislikes when you are writing your profile, consider your endearing qualities as well. Endearing qualities, what are those?
Those are those qualities which make you liked by others. Of course, these are things that we never bother, about but maybe we should. So what I would suggest would be to ask your best friends why they like you. Who knows, their answers just might surprise you! But at least you will get an idea of what you can include in your profile.
You could try out the followingexercise to find out what kind of a person you are. I wont say that the results are absolutely fool proof but they certainly might be interesting.