I personally enjoy wearing over-sized sweaters, they are comfy, keep you warm and with the correct matching and pairing they will look amazingly cute, so I have here 5 ideas on how to style an over-sized sweater.
Taken from FashforFashion
Using a Monochromatic Palette.
With a Statement Necklace.
Pair them with Thighs.
Remembering the proportions guide remember that if you use something loose on top, you have to pair it with something fitted on the bottom, they can be worn with boots, flats, heels, pumps anything and always add statement accessories. As you noticed the sweaters are mostly huge, so accessorizing is an important part of the process, overall keep it your style and have fun with it!!