If you know your partner well, a simple whisper, hand placement, look, etc can be enough to set them on fire. If your relationship is solid, there's a little flame on simmer all the time.
Discussion
i see—i like this way of looking at it.
i think to me, this is more like planned anticipation since it takes more of a conscious effort in a longer-term relationship to keep the flame ignited.
but also for me, anticipation is nearly constant so... lol :3