When someone concentrates heavily enough on a task, especially if there are any emotions attached to it like enjoyment, excitement, frustration, or sorrow, it can transfer to other people even in small subtle ways. This is what I like to describe as shared attention. Our attention goes to what their attention is already on. This subtle coherence or assimilation can also be easily interrupted though too since it doesn’t belong to us in the first place. If we already have our attention elsewhere, we likely won’t be receptive to the streams of attention other people are projecting. But if we are open and receptive, then what is around us can become part of us.
When we pay close attention to our thoughts, especially when it leads to behaviors or actions that are out of character for us, it is likely coming from something else other than ourselves. The key is to observe, not absorb. This is most important for people who are naturally telepathically receptive to their environment, especially in haunted or spiritually active locations. The most receptive people can easily become influenced by Spirits or Entities that have a dominant energy. So self protection, self observation, and careful monitoring of our internal dialogue and thoughts are important. This helps us discern what is ours and what isn’t.