tào huà 
		polite phrase
conventional greetings
cliché
to try to worm facts out of sb
		 
		
		
														
		
		
			 
		
				
		
			kè tào huà 
		conventional greeting
polite formula
		 
		
		
														
		
		
			 
		
				
		
			huà lǐ tào huà 
		to use seemingly innocent conversation topics as a pretext to glean information
to touch upon other matters not central to the topic being discussed