Why do some guys mistake kindness for interest?

I think you should not change your character and remain a kind person and not ''tone down your kindness because that is something that is a great et and it's such a little thing that can do so much good to just be nice and kind. When you meet guys and get to talk to them then just be open and let them know that you like them just as a pal and not as anything more then they will not get the wrong idea and if they do, then ignore it. As long as you are a kind person who stays true to herself, you will make friends not just with guys and it won't be misinterpreted in a wrong way. Don't fake it, be yourself. If you like a guy then be a pal and tell him that he is a nice person and nice to have as a pal and that you are not looking for anything more, and if he tries to come on to you, you remain polite but ertive and say ''No, I am sorry, I like you as a person very much, but I am not interested in a romantic relationship'' just say that in a no-nonsense way and they will understand that but you don't have to stop being kind and you should not try to become a different person from who you are. Kindness to others costs nothing at all and it can make some people happy, I am not talking just about guys but about people in general. Some lonely person, if one is kind to them and treats them with respect, that may mean a lot to them and raise their self esteem and theey feel appreciated, and that is something we all need, to feel appreciated. You would be nice to your colleagues at work, then that creates a much better work atmosphere. You can put them in their place if they get the wrong idea. If you see they are developing feelings for you, which you may gather from their body language or from their facial expressions or their words when talking to you, then you can always tell a guy that you are just seeing him as a nice person and as a pal, then you don't hurt him as you never had a relationship with him... feelings only really get hurt if you are in a relationship with someone and then you dump them and tell them that you don't reciprocate their feelings...so just be ertive but keep the kindness,