If you want a bullet style other than round black circles, do this:
Select the entire bulleted list. The bullets won’t appear selected.
On the Home tab, click the arrow next to Bullets.
Choose another bullet style from the Recently Used Bullets list or the Bullet Library.
Note: If the bullet you want isn’t in the library, click Define New Bullet, and then click Font, Bullet, or Picture to add a new bullet style to the library.