One thing I did with a couple of friends on the last day of school in 8th grade-
Everyone was crying and being all sad that they weren't going to see each other for a while- at least not in the same setting. Me and two other friends all got together on the side and randomly starting staring a corner of the room. We just started at it for a long time with an interested expression. Every now and then one of us would point at the corner and look at the person next to them. We did that for a long time and got a bunch of people walking by to look in the direction we were looking, when they saw that nothing was there they looked back at us very confused. lol