I'm back! And, I come with a lesson that I learned the hard way (not really, just wanted to say that) about how to make your own boyfriend jeans!
If you want to use super skinny jeans (I suggest this for somebody more full, because baggy jeans that are tight at the ankle tend to make your legs look heavier and shorter)
1- Roll them up as much as you'd like! It's an All-You-Can-Roll-Rollet!
If you want to use regular or baggy jeans (this should be attempted by slim (or slim-ish) women)
1- Pinch the hem of your jean tight around your ankle (but not too tight if you want them to be cropped)
2- With your other hand, take the extra material and fold it so that it lies flat, wrapping it around your ankle.
3- Roll the hem up as much as you'd like. I would suggest 3 rolls minimum.