Yes, it's something that's on my mind a lot. I try to make eye contact, but in the process, I lose my train of thought. But, I've been observing (sounds too scientific) a woman whom I've been speaking to quite a bit recently. Our kids are in the same afterschool class and we talk whilst we wait. When she's talking, she never looks at me, and her gaze is somewhere in the distance. She's obviously concentrating on what's she's wanting to say and looking at me would be distracting. But when I'm talking, she's watching me and making lots of eye contact. She appears to be watching for visual clues to what I'm talking about. It's been a different experience from speaking to most other people, who make intermittent eye contact at varying intervals for various lengths of time.
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"We act as though comfort and luxury were the chief requirements of life, when all we need to make us really happy is something to be enthusiatic about." Charles Kingsley