How Do I Tell HIm How I Feel?

I Met This Guy About 4 Months Ago..We Became Really Good Friends And I Started Having Feelings For Him..He Doesn't Know Because Im Too Scared To Tell Him..Im Not Sure If HE feels The Same Way About Me..He Flirts With Me Sometimes But Im Not Sure..I Want To Tell Him How I Feel But I Dont Want It To Get Awkard Between Us..What Should I Do?