I left the JW's when I was 17, so most of these games were played during teenage years.
Here are some things I remember doing with my friends during the assembly:
1. The last clap. -pretty self-explanatory really. After a brothers talk or when "new light" emerged and the entire stadium would erupt with clapping we would see if one of us could be the very last person in the entire stadium to clap.
2. The Laugh Game. Try to make your friends bust out in laughter in the middle of a serious talk. This was usually done through drawing funny pictures, making weird faces, or making weird sounds. Many times we weren't even the instigators. If you sat anywhere near a baby or toddler or an old brother, it was almost inevitable that the sound of breaking wind would be soon resonating through your section.
3. The Binoculars Game. There were many variations of this game. One was that you would use your binoculars to scan across the stadium for others using their binoculars, hoping to lock on to stare into each others binoculars. This was very rare, because although it was easy to find those others using binoculars and although it looked like they were looking right at you, most times they weren't. This was always confirmed through trying to wave at them to see if they would wave back. Other binoculars games included trying to find the hottest sister. "Dude, check out section 327, sixth row from the bottom, I believe she has a shasta in hand right now." How many friends or acquaintances can you locate around the stadium. "Hey there's the Walker family,...I wonder why they sat over in that section." And finally, try to locate the most number of brothers sleeping. This was best played in the afternoon session usually right after lunch.
4. The Jehovah Game. There was always one or two brothers who when giving their talk would have to say "Jehovah" in the most deep, bellowing and strung out way possible. JEEeeeeeHHOOOOOOVaAAAAAAH. The more talented brothers could string the name Jehovah out for like a good two to three seconds. Let the counting begin. How many times can this brother say Jehovah in their talk?
Anyone else have any games during the DA to keep things interesting?