Muffin used to do that, hide under a blanket or a sheet that I would throw over something for her, and then she would meow, as if to say, find me! and then she'd jump out and she really loved that game, we still play it sometimes, actually lately I have been making a real effort to spend more time with her again.
Cookie, oh she was funny, she loved it when I chased her, she knew it was playing, in fact, she would want me to chase her, LOL
Em, Lu, Patches and Charlie, don't understand chasing, they think they are in trouble! Louise especially, I have tried it a few times and she gets scared, runs then looks back at me all panicky!
as for the 2 new ones, will have to see.