Take a look at the surface of your roll-on stick:

- **Dull and dry surface:** the roll-on was not used in the last 10 minutes.
- **Glossy and wet surface:** you had used it recently.

Alternatively you could also watch for a fluid level in the container:

- **No level visible:** the deodorant was evenly distributed on the inner surface of the container. Due to the high viscosity it will take some time to settle. You had used or moved it recently.
- **Fluid level visible:** (on the botom when stored upright, at the sides when stored lying) the deodorant was not used recently.