AN in chapter 1.
"I didn't know you were religious."
Buffy looked sideways at her newest slayer, a small frown on her face. "I'm not."
Kaylee nodded at the necklace Buffy was holding in her hand. "What's that for then? You always wear it when we go patrolling."
Buffy's eyes widened in surprise, looking at the plain silver cross she held in her hand. Her fingers stroked the worn metal, imperfections worn soft and smooth by countless years. She stood silent a moment, before smiling a small smile and clasping the necklace around her neck.
"I'm not religious. Just superstitious.