Warm up. Half seat. Get off his back and make him long and low.
I begin to ask for a little bit more moving him more into my hands and more "up" on a big circle. I like to begin my sitting trot with no stirrups.
A pretty trot. Some circles, some more outside bends, some change of bends, changes of ze rein, oh, and transitions.
Then he gets to stretch it all out :)
I cantered him this day also - that's quite not ready for photos.....he thinks he's racing again or something, he just wants to RUN. AND IT'S FUN!