For me personally it looks like you do them both 1: don’t rush his speech, don’t act impatient or do weird things with eye contact like look away, or please don’t say “get it out” 2: don’t treat him like he’s “disabled” i don’t know if that sounds wrong but people tend to treat us like we are dumber or don’t know how to form our ideas and treat us like we are mentally handicapped which sounds terrible to say but that’s kinda how it feels like.