what are appropriate topics for 'small talk',and what are in

what are appropriate topics for 'small talk',and what are in what do you think are the appropriate and inappropriate topi what are i talk What is "small talk"used for what are you talk about what row and number are you in? are you waiting for something and what are they? what are friends for? What are you sucking talk about What you are. what is large and what is small （are ）only relative为什么把改成is what are you in? What are you in