What if you just met this boy and you think you could have a relationship with this person but you don't know if they feel the same or feel anything because they really don't express it in any tipe of way?
Just say hey babe what are you doing. Then say I miss you. But to get his attention the most just talk about things he likes besides you. Like sports or whatever. It works. My boy friend is Justin Bieber and we talk a lot about us and singing and his tours and how much he loves me lol.