its hard to figure that out... sometimes you just know... I find the eyes to be the biggest indicator. and few constructs will actually coem out and say that they are a dreamwalker, let alone know what it is, thats why I was kinda confused about the teacher, he seemed interested, but it took him some time to build up the courage to ask me, I wonder if was a dreamer as well, perhaps just starting out? I duno it was confusing =)

Anyways... look into their eyes... If you se yourself, than its a construct, if not, its a dreamer, I have not met many dreamers in my dreams, I did have the luck to have a shared dream with a very close friend so that has helped me to be able to determine whos real and whos not, but its still sketchy at best in how accurate it was =D