Abut this boy i just now got off the phone with.....?

Ok i just called him for the first time but I called him and he as very quiet,he didnt tlak alot anyways i was trying to keep the conversation up by asking him about what likes to do he just gives little answers uhmm its hard for me to talk to him how can i keep this conversation up the next time i talk to him i asked him how he felt right now and he said akward..?i know its because he's nervous but what shoud i say to him or what are some lines?