Martyn meeting Toby for the first time IRL. The hug goes on for several very long seconds.
Toby may be a Butt Monkey in most of Martyn's videos, but there's never any doubt they're best friends. Especially in their joint adventure maps, and Livestreams where Toby is the only person Martyn will feel bad about backstabbing to win.
Martyn's general response to his fanbase, known amongst themselves as 'Saplings', is overall heart warming. He's always gushing about the awesome art they do and being ridiculously nice when he runs into them in public. He also seems very aware that his some of his fanbase skews slightly younger than other Yogscasters and has respect for that.
"Saplings can grow up to be anything they want to be. Never forget that.
His joint channel Inthelittledream with girlfriend Kaeyi, is full of heart warming moments. There's just something adorable about their willingness to share their lives with people, and their obvious excitement at their new life together (and given some of the entries on the Tear Jerker page, they've certainly earned it).