er....your english is so special,i can't understand your questiong clearly,but i'm willing to try.you say you can't find a topic?then, first you can ask their name,then say something you like,maybe they will be interestde in, or not,if you can find someone who have same intrests as you,that will be more easy for you to talk with each other.by the way,not all the foreigner like talk about weather.(it's just what our textbook says)o(∩_∩)o...