easy,classic;ı need Lời khuyên

ı don't know how to make Những người bạn with chatting.ı am saying 'hi!how are you?' and they are saying 'Hİ!ı am ok,you'
and ı 'ı am fine' and this is whole conversation.when ı am trying to ask quetions ı am feeling like ı am boring them because usually they are not trying to talk with me,ı dont want long conversations but ı wanna be friendly and ı dont know how to start a friendship,now ı am always thinking twice before starting a conversation;what should ı do?