If you want to increase the scent, just flip the sticks. Please remember to always flip diffuser reed sticks over a paper towel and to wipe bottle so no oil drips onto your table/surface.
In small spaces, like bathrooms, use less sticks. We find 3-4 (of 7) diffuser sticks work well when using diffusers in the small rooms. If we use all the sticks, it can be overwhelming in small spaces.