Here are several hairstyles, gathered from my own experience as well as various places on the web, that demonstrate different ways hair sticks can be used.
Hair sticks are fun, and actually pretty easy to use. The best way to insert a hair stick is to push it gently into your hair and sort of weave it up and down as you draw it through your style (bun, braid, ponytail, etc.) so as to anchor it. Don't be afraid to push the stick all the way down to your scalp; it makes the hold even more secure.
Hopefully I haven't missed any steps, and everything is clear enough to follow. The pictures were all taken in my kitchen by my friend, and they all feature my hair. But don't get too excited--it has since been cut.
Step 1: My Favorite Bun (Cinnamon Bun Variation)
I start putting my hair in this bun as soon as it's long enough; adding hair sticks makes it look much more elegant and keeps it very stable. Just a note--my hair is quite long in these photos (just past my butt), so my finished product may look kind of different from what you do with your hair. But you DON'T need hair as long as this to successfully use hair sticks--if you can put your hair up, chances are you can use them.
On to the bun!
1. Gather hair together at crown; twist entire length.
2. Coil entire length of hair, putting each successive layer beneath the previous one, so that you end with a column of hair (the height of which varies depending on the length of your hair).
3. Take top coil of column and pull out, pulling it down so that it surrounds the column, flattening the entire bun. Tuck ends. Insert one or two hair sticks to secure bun.