Now that you put it that way, I see the Si in the ESFJs in my life. How does their Ne (ter) manifest? If Si is traditions and Ne is new ideas? Or is that oversimplifying Ne?Not really. Why? Though it is the least understood of all MBTI. I can never read Si on forums as I can Fi, Ni, or Ti, it's more subtle but how you act; as far as I've seen you're nothing like my mother. Though it could be your fourth function and that's why I don't see it. Si dom in an SJ often translates into adherence to existing facts, traditions, worldviews, or methods. They are very dependent on what has already been tried and established, systems of thought that grant them a sense of consistency and security. They can come off extremely sure in their actions. There was a girl who would post here last year or maybe the year before and SHE reminded me of my mother. Like if a user could show Si, she had it.