In year 7 some girls managed to make this uniform their own - displaying black and red lacy bras through the thin white cotton (mustn't exaggerate - two girls did this). The rest of us wore M&S vests and could only aspire to such greatness.
But depending on prevailing fashion we all spent quite a lot of time either rolling our skirts up - to create a curious artificial muffin top or at other seasons pulling the skirt as low as possible - taking care not to reveal too much knicker.
There was also a fashion for wearing as baggy a jumper as you could get away with. Girls would sit with their knees clutched to chests and then pull the jumper over knees; after a lunch break sat in this position most jumpers would be bigger (if although rarely uniformly - it produced a strange lumpy effect) - sadly for me Mum's washing techniques always returned mine back to normal size or possibly somewhat smaller.
Ties were worn as short and fat as possible, especially by those with cleavage; alternatively you tied them so that the slim side was uppermost (think Justin Timberlake in school uniform - there is a man who likes a skinny tie) Strange that we never tried different knots - so much variety out there - Windsor, Pratt, Four-in-hand, Prince Albert (um ... mind boggles with the last one - I couldn't bring myself to do a Google image search).