One thing to remember about products for fine hair is they have alcohol in them. The alcohol is there for a few reasons It will reduce drying time, creating volume and make hair look fuller. Therefor hair can have a tendency to become very dry.
Using a leave in conditioner will help with any dryness with out weighing down the hair down. The other option is to not to condition every day maybe try every other day or every third day. When conditioning use your conditioner only on the ends of your hair and not up toward the roots. This will help with your hair not looking greasy by the end of the day.
Round brush instead of a flat brush will also help creat lots of volume. Blow drying your hair upside down with a touch of root lifter,or moose will deepen the amount of volume you can achieve.
If you have any other questions pleases feel free to to contact me at any time! Have a fabulous hair day!!