You make sloppy cuffs
The laid-back look of cuffed denim can add instant style to any ensemble. Get it right with these simple tips from WhoWhatWear: For loose-fitting, wide-leg jeans: Try a thick cuff. Fold up to create a one-inch cuff, then fold again to make a two inch cuff. For skinny jeans: Try a mini cuff. Fold up to a half-inch cuff, then fold again to add an extra half inch. The bottom of the cuff should hit at or just above the ankle. For slouchy boyfriend jeans: Create a no-fuss half cuff. This one is less of a science; simply fold up to make a four-inch cuff, scrunch the bottom of the cuff to create texture, and roll the top of the hem downward. Check out these tips to save money on clothes shopping.
You shop the wrong size pockets
The size and shape of your pockets can seriously change the way your jeans look from behind. In general, pockets that sit high and tilt slightly outward will make your tush appear fit and lifted. Avoid pockets that sit lower than the bottom curve of your butt (the spot where your butt cheeks meet your legs), says About.com. Jeans with no pockets are also a no-no. These little fashion tricks can make you look 10 pounds thinner.