It seems like you actually care and support this person and that's good. As long as that comes across you should be fine. And I see in a different your motivation seems to be a promotion and you want to make sure they are comfortable with a larger speaking/verbal role. Which is nice and refreshing. And one thing I did like is when people made sure I wasn't skipped over in a group setting for example, "u/McTommy do you have anything to add" I could say no or just nod my head. Also if the group has been really talkative the person might never have found an opening to begin speaking. EDIT: and over time I've learn to tell when someone is being genuine with me or judgmental. So if you are genuine then a little stumbling in trying to find the right words (at least for me) And my boss thought the mentally challenged this was a compliment, too.