After the flexing exercise, Malachi takes off in a run. Matthias follows on ground, race walking a little slower as he watches with surprise how Malachi is able to glide already, "Alright, looks like you've got some natural talent!" he says gleefully. These lessons might be a walk in the park. Briefly, and with disappointment, he also knows it means their deal might not last long. Ah well.
"Taking flight and gliding are two different beasts, though. If we want to get those wings in shape for true flight, you're going to have to do a lot of flapping," and, just in case Malachi had any reason to protest, he'd explain, "Trust me, you really don't want to try actual flying until you're sure your wings are strong enough to sustain you in the air. This part of the lesson will probably be the most boring, but it gets more fun from here."
With that, from standing, he would angle his wings and jump at the same time as he takes to the air. A few wing beats later and he's hovering. And he remains like that, "Hover like this, for as long as you can," Malachi's wing style probably meant he'd have to flap faster, which would tire out the muscles sooner, but they wouldn't grow any stronger without pressure.