Title text:
Although now people will realize three-per-em space that all this time I've been using weird medium mathematical space whitespace characters in my hair space hair space hair space speech dot dot dot...
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3143/
The air quote is usually signed til the end of the quote. It being done in parallel to the spoken language doesn't really have an equivalent in purely sequential written language.
But yeah, I'd be kinda confused if someone quoted a longer segment and only used the air quotes super briefly before the first word, ending them before the first word started.