Keep watching Cersei and Jaime?

You discreetly watch Cersei and Jaime from afar. You've heard the rumors like everyone else about the two of them, but if they are true, they have been very good at hiding their incestuous affair. Jaime spent quite some time whispering very close to her ear, and for the most part she kept her normal half-smirk half-stoic expression intact, though it's possible her cheeks redden ever so slightly.

Cersei turns after a while and walks down the hall located behind her, very slowly, looking this way and that before doing so. Jaime stays behind, keeping a watch out. You turn away for a moment as he scans the room. Then you turn back in time to see him follow Cersei down the same hall. Interesting.