How can i be a better girlfriend towards my boyfriend?

we've been dating for almost 2 months now, and we constantly have little problems. when we kiss i never know how to show more emotion. i want to show him that i do love him. when i do something wrong, i dont know how to say sorry the right way. he'll either get mad that i keep saying sorry or just say dont be sorry. i feel bad for the mistakes i make and i dont know any other way of showing my sympathy. and i can never be more seductive, i dont know what i should do to make him more "happy". help me.