It was a gigantic vessel with metallic structure on the side. it seemed that it was attempting to cloak, and was having trouble, but as soon as it realized i had seen it to where i could see the outlines of the ship, it's attempts to fully cloak began, and in doing so, the outlines of the ship started to blur, and finally, all i could see where the clouds, but with a blurry consistency. again, it seemed that it was having issues with cloaking. it was an amazing site, as it flew over my apartment building, in an easterly direction. it gave me a very strange feeling because i think it saw me, and i think it realized i was observing it. i guess i thought it was a bit scary.