Low Taper Straight Hair Question

[cagada]

Hey everyone,
I’ve got straight hair and recently got a low taper haircut. While I like the clean look, I’m struggling with styling it. My hair tends to lie flat, and I’m wondering how to manage low taper straight hair to add some volume without losing the tapered shape.

Should I use a specific product, like a mousse or a matte clay, or would blow-drying help? Also, how often should I get a touch-up to keep the taper looking fresh? Any tips or product recommendations for straight hair would be greatly appreciated!

Looking forward to your advice!