I hope you arent one of those people that say,"Wanna be my friend?" I also hope you dont start a conversation about your illnesses that stuff just annoys the hell out me. "Im crippled, love me or die..."
No, I walk up and say 'hi', then I talk about very small stuff, like the weather or popular science. I don't ask for friends. I'm kinda shy, and people usually ask me about my problems, like "hur dur y do u use a cane?" or a walker.