I have a short bob hair cut but my hair curls at the end and it is so annoying? How do I straighten

You could blow dry it straight (very hard; at least for me), you could use products that make your hair straighter (semi-effective: sometimes work, sometimes don't), or you could use a straightener (sometimes called a flat iron), that works all the time. straighteners can be expensive (Chi is almost $100, I believe), but some are less expensive that others.

I have a short bob hair cut but my hair curls at the end and it is so annoying? How do I straighten it??

use a straightener, it'll be more effective than blowdrying or whatever.

I have a short bob hair cut but my hair curls at the end and it is so annoying? How do I straighten it??

A flat iron or straightener along with a straightening cream. I personally recommend StraightSexyHair cream it really works

I have a short bob hair cut but my hair curls at the end and it is so annoying? How do I straighten it??

Definitely try a flat iron.

I have a short bob hair cut but my hair curls at the end and it is so annoying? How do I straighten it??

buy a CHI flatiron, they work the best without frying your hair, and it takes a short amount of time with good results. also use a straightening hair product before straightening your hair.