Basic
Look up at the night time sky and explain what you see. (Patience108)
Visit a temple or church or religiouse/spiritual place ... sit down there and meditate or ask for guidance from the DC native in that place - how did it go? (Patience108)
Dive/fall into any body of water and let yourself be carried away by the strong current - explain the experience. (Patience108)
Cry in a lucid dream. (Spaceline)
Get drunk or high. (Intet)
Advanced
Summon Olaf and give him a warm hug. (Sparkles85)
Bring someone from at least 200 years ago to the present. Describe how they react to the present day world. (Spaceline)
Look up at the stars at night, then pick one out of the sky and put it into your hand and describe what it feels/looks like. (imazu)
Find a person you don't like, summon cows and start booooooing the person along with your cows. (Ginsan)
Go to the moon, find the American flag and sign your name on it. (Rockefeller)
Bonus
If you always dream in color, turn the dream black & white. If you dream in black & white, make the dream in colors.(PercyLucid)
Freeze the sun. (Spaceline)
Reverse time. (Intet)