Let your feelings show through your actions. Rather than blurting out of nowhere that you have fallen for him, why not exert some effort first to make him feel how special he is to you? Start by doing small things that will make him feel special. In his perceptive, your actions may give him an idea about how you feel towards him. At the very least, it will at least get the awkwardness out of the way when the time comes for you to confess your feelings. And if you’re lucky, your constant caring and kindness will also make him fall for you.