text:  Now Rachel was absentmindedly rubbing her index finger back and forth over her upper lip, her brow slightly furrowed. Nick knew that gesture well. What was she worrying about? Ever since he had invited Rachel to Asia a few days ago, the questions had been piling on steadily. Where were they staying? What gifts should she bring for his parents? What had Nick told them about her? Nick wished he could stop that brilliant analytical mind of hers from overthinking every aspect of the trip.