Planning for subtle on purpose
"Just a little" is the most common request and the hardest one to agree on. Subtle to you might be a tiny border change. To someone else it's half a syringe.
Decide what should stay the same about your lips, not only what should change. That gives the injector something concrete.
LookPrep has notes on planning a subtle lip filler result worth a read before booking.
Your injector should explain their plan. Sofia R.