The person will bifurcate their line of thought into a new set of branches. As this happens their energy perks-up right before the new line of thought is created, and the body/mind participates in its birth by giving it momentum, curiosity and a sense of novelty.
This signal evidences a mind who is constantly generating new/branching ideas in real-time as a response to the context of the moment. They carry a proactive, exploratory attitude toward the world of ideas and imaginings which causes new trajectories to be chased after spontaneously. However, their psyche will be better able to generate short-term (situational) associations between idea-clusters as they constellate into consciousness, instead of long-spanning and consistent/enduring ideas.