Flirting advice?

I've been pining for my friend for a year like a sappy romantic. He walks into the room and it takes my breath away. He talks to me, makes eye contact with me, accidentally touches me and my heart practically pounds out of my chest. I cant tell you how many times I've thought about kissing him or how many ways I've thought of kissing him. I take things like this really seriously and dont throw myself around. I've only ever liked one guy before and I liked him for 4 years straight until things happened and he became an a** to me (not my fault). He sends a lot of mixed messages and I'm not sure what to do about it but I want to tell him. I want to tell him so bad. I know some of you will say "Just be yourself and he'll love you for who you are" and I have, I am myself with him because I can be and that's part of why I love him, but... does anyone have any tips on how I can... woo him? I dont know, I'd just like to sway him towards me a bit and wanted to ask if anyone had any advice on how I could do that. I'm not the best with flirting or that kind of stuff, does anyone have any help to offer?