Be Your (Best) Self
You should be able to be yourself around your special lady friend. What are you normally like when it comes to things like hobbies, humor, spirituality or goals? Do you change when you're around her? Hopefully, not much. Sure, sometimes change can be a good thing if she helps you evolve and mature. But in general, if you behave in ways that are inconsistent with who you really are to satisfy, impress or appease her, you might be dating the wrong person.
Real affection is when someone is into you for you. It comes from a place of acceptance, not a place of deception where a woman has been duped by an act you've put on.
Gravitate toward girls who celebrate and encourage the authentic you, not the ones who press you to change for them rather than for yourself.