Severus didn't know how to reply to that. He wasn't sure if he'd want to keep seeing Lily or not. It all depended on how things went. There was a long stretch of silence before he finally decided to just not reply at all. At least not to that.
He took a bite of the food in front of him chewing thoroughly. "If you want to start with freezing charms then perhaps we should start with something small to freeze and work nonverbally. Once you have that down, we can attempt it wandless and then put the two together. When you discover your technique it's just a matter of practicing."
Severus shifted, reaching to pull the hair tie out of his hair. He couldn't stand it tied up, really, and he only put up with it to keep his job. He hated conforming but he had yet to figure out what the heck he was supposed to do in this universe, and he thought he ought to stay under the radar until he figured it out.