How should I encourage him to express his feelings towards me?

Aww soo cute but don't let him know how you feel straight up. Never do it first to any guy. Give him subliminal messages and hints. Be nice and warm towards him but don't reveal how much you are really excited about seeing him and other stuff. Just give him enough to make him think you're interested but then again he really wouldn't know unless you tell him and you only tell him after he expressed his feelings towards you and do so few days after the fact. Goof luck