One big tell is whether or not you have pockets of sensory rigidity/sensitivity. It's difficult to find the right word, but there is a huge difference between strong Se and inferior Si, but it is very familiar to me to spot. People who are Se dom or aux will have a kind of command of sensory experience in the moment that enables them to be very aware, but also very adaptable. I can give a few specific examples like a handyman that used to work on my house who was an ESTP. When I asked the group of people what they wanted on their sandwich for lunch, the tertiary or inferior Si people were extremely specific about their sandwiches because they needed the flavor to exactly match their internal expectation. The Se-dom guy said whatever basically constitutes a sandwich would be great. The Se-dom will be very aware of how the sandwich tastes, but there isn't an internal mapping of what it is supposed to be like, so they can enjoy a dozen different sandwiches with the same level of gusto. Si has more internal mapping and needs the sandwich to match expectations. In this way people with Si will tend to seem more discriminating about sensory details and more sensitive to finding experiences that match expectations which can be driven by familiarity or quality and taste. When Si is tertiary or inferior it will tend to be less consistent, often being absent in the face of obliviousness that results from their abstract, intuitive focus. Someone with strong Ne and low Si might become enthusiastic about the "idea" of some exotic sandwich, and may be able to enjoy it because of internally wanting to like it combined with being somewhat oblivious to how horrible it actually tastes to them. The strong Se person will try out the weird sandwich and enjoy a wider range of possibilities because of having less judgment about what tastes "good" or "bad". Not to say they don't have any, but it is not as detail oriented as Si.
