dream experiment

After a long discussion a friend and i have decided to make a log of our dreams.
This all started from one night not so long back when we both had the same dream, we slept in the same room and spent the majority of the day together. Last night he started to describe a building from his dream and stopped him and described the actual image he had seen because i remember dreaming about the same building but in a different scenario.
We are going to try doing the same activities together and apart and keep a log.
We then thought of the possibilities of meeting up in dreams.
Has anybody got any experience with lucid dreams or astral projections, can we meet in our dreams and remember what we did when we wake up?
We're going to try and find out.