How to make a guy jealous?

Okay, this sounds kind of shallow, but I really like this boy in my homeroom and I'm pretty sure he likes me too, because he always walks really close by me and looks at me pretty intensely. Anyways, I want him to notice me a bit more and I am not going to start dressing cheaply or inappropriately but are there any ways to make a boy kind of 'jealous' and want you.