How do I talk to guys I like?

Okay so your in highschool right? Well during lunch or something try to get in the line next to him but you know, dont make it obvious. And act like a shy cute girl. Don't try to like dress different or anything, infact look like you look when you think you look ugly. Guys normally come when you fell your shiitiest. Dont try to make conversation if he talks just smile and listen and talk but kinda make l=it so he doesnt know anything about you so he wants to knnow more. And try to get near him frequently. and smile at him if he looks at you.