Someone who is respectful of you. Actually listens when you talk and is interested in really getting to know you - not just get in your pants. A good guy will wait until you are ready to sleep with him not make you feel pressured to do so. And a good guy doesn't mean he is perfect but he will never intentionally try to make you feel bad/sad.

I'd say look for someone that you think is a good friend, above all. My philosophy is that my significant other is my partner, my best friend, and my lover. It's hard to find someone who is all of those things out of blue. Look at people you know.
I agree with the lady above, too. Someone who is respectful, and you can have a conversation with. You have to find someone who you're interested in, and is interested in you. It's a pretty terrible situation when you're bored with your boyfriend, especially if you still care for them.
My most important tip would be this: Don't feel that you need to start dating a person right after you meet them. Get to know them, and become comfortable before you put yourself out there. You can figure out if you want to date them just from being their friend first.

As for him being interested in you, I'd say he'll call you a lot, text you through-out the day, he wants to hang out one-on-one a lot, and he seems to be really attentive to what you say and do (e.g., you shiver, or rub your arms, he offers you his jacket). These, of course, aren't fool-proof, especially with really old friends, but they do point in the right direction.

i don't think you should "look" for a boyfriend. because usually when you're searching for one you wont find what you really want. you're more vulnerable to the types o men you dont want. just focus on yourself and be your own boyfriend [treat yourself, complement yourself, etc.] become comfortable with just being you and then a guy will come along when u least expect it and will appreciate you :-)