Reply																		
							Wed  4 Apr, 2012 01:43 am
						
						
					
					
					
						‘Besides,’ he announced dramatically, ‘I have a
very big surprise in store for you today.’ He picked up his glass and
took his time with a deliberately slow sip. ‘I was going to keep it a big
secret, but judging by the state of your socks, young lady, I suppose I
will have to give you a little notice.’
					
				 
				
						
														
					
													@kkfengdao,
												
I have no real idea.  Maybe some more context would help, though even that seems doubtful.
I seems to mean he is suggesting she is a bit naive (calling her "young lady" is itself a bit patronising)
											
 
					
				 
																									
						
														
					
													@McTag,
												Agreed, it's hard to tell without more context.  Are her socks dirty, darned, or do they clash with the rest of what she's wearing?
											
 
					
				 
																									
																
						
														
					
													@hingehead,
												
Okay, thanks. 
 I've read the passage in question.
It's still not very clear, but since Mary is a child who was playing with a dog, and is therefore presumably a bit rumpled and dishevelled, and her father is telling her an important visitor is expected, he is probably just giving her a bit of notice so she can have time to tidy herself.