Filter.
Usually yes. It's possible to close off from the Force, but that requires intent, typically. From some of my conversations here, I've learned there may be some creatures that are cut off from the Force but I've stumbled across nothing like that in my galaxy. Most creatures I can sense, and some of them, depending on the creature, provide sort of a feedback into their feelings or emotional state. Unless they're very clear, or it's someone I'm very connected to or I go digging specifically it's like a mental smile or frown or the like. You can tell they're upset, but not why. That sort of thing.