In photoshop using a bamboo fun tablet, how do you set the brush to draw by pressure sensitivity?

Sometimes, i got to draw using pressure sensitivity without getting to set up anything. It's automatic when I open photoshop. But often i don't know what to do, the pressure sensitivity is not automatic. i even tried changing the opacity jitter and all but to no avail...





i'm new in using tablet so bare with me... tnx...In photoshop using a bamboo fun tablet, how do you set the brush to draw by pressure sensitivity?
if you go to brush options, there's an option to choose the brush pressure. I don't know about another way.


I know if you use Scribbles (http://atebits.com/) then you can use pressure sensitivity. You could possibly use that, export, and then import to photoshop.