our friend has a hoodie, and the top is pointy. it makes her look like a klan member. what can she do to fix this?
Don’t wear it with the hood up.
With some scissors and a sewing machine she could easily re-shape the hood into a rounded one, but so few people sew anymore. A needle and thread will also work, but she’d need to be very careful about her stitching, and examine it after each washing to make sure it wasn’t coming apart on her.
Is it new? She can try washing it a few times. It may just be the sizing making the fabric stiff.
Or she can turn the hood inside out, grasp the pointy bit and give it a good twist, then secure it with a rubber band in a matching color. Not permanent, but also requires no sewing skills. It’ll look really stupid when down, but might work when up.
Dang, where’s that ghetto thread? 
Really, sewing isn’t that hard. Turn the hood inside out. See the pointy bit? Take a piece of chalk and draw a curvy bit instead. Pin the two sides of the hood together so they don’t move around on you. Now you can cut the pointy bit off. Cut about a quarter of an inch away from your chalk line. You should end up with a roughly folded triangluar piece of fabric that opens into a diamondish shape.
Thread a needle. Pull the thread through so one end is longer than the other and tie a knot in the end of the longer end. Don’t tie the two pieces together, or it’ll snag. Start at one end of your chalk line. Push the threaded needle through the fabric on the line, going away from you. Pull the thread all the way so the knot stops the thread. Now bring the needle back around to the front again. Place it on the chalk line as close as you can to the first hole without going through it again. Push the needle through again and drag the thread after it. Repeat and repeat and repeat. Make sure you don’t lose the shorter end of the thread. You only want one layer of thread going through the fabric. This is called a “whipstitch.” As you get more proficient, it’ll be easier to make the stitch from the back of the fabric, with the needle coming toward you. Play with it to see what works best for you.
When you get to the end of your chalk line, bring the needle forward again, make one last stich, but this time don’t pull the thread all the way tight. Leave a little half inch loop. Put the needle through this hoop twice and now pull tight. You’ve just made a knot to secure this end. Trim off the excess thread. The chalk will wash out with one washing. A whipstich won’t wash out.
While she’s at it, she should take the excess material and add ears to the hood. I don’t know why but I really like that.
I second this motion. I think all hoodies are actually shaped like that, but you stop noticing after a while, because the point becomes less obvious. Also, maybe wear the hood farther back on your head, so that the point is kind of hidden behind you, rather than right out the top of your head. Or wear some kind of brightly colored pin or bracelet to detract attention.
Most hoodies have a two-piece hood (sometimes rounded, sometimes pointy at the top), with the seam going through the centerline. Some have a three-piece hood with a panel for the back of the head and a panel for each side. These are less common and more expensive, but probably look better if you wear the hood up often – at least, there’s no point in the back. Hoodies made of thinner fabric tend to have less stiff hoods. Ones with a layer of fabric lining the hood tend to have really stiff hoods that tend to be pointy if they’re not three-piece, but they often are. Someone with sewing experience could probably convert a two-piece hood to a three-piece hood (maybe even sew in a lining), and you could probably just cut off the point, as WhyNot suggested.