Maybe the trainer is asleep.

If you really want more action: Have a go at half steps and making contact with just his lead arm, not his head and then step in on his reaction to you making first contact. Know what I mean? break up the range into two parts contact range and head and body contact range. Work on disruption of his movement or balance at the first contact range and move in on the automatic reaction you get. Their elbow is their balance point and also a point where they cant throw at you from, if you got your glove planted down into it. Easier and more fun to do when you are both in opposite stances, cause its in the outside of their elbow. Even a little push to it, puts them in reaction mode.