Take the Headmaster's hand, and let him show you around to his prized possession: the Lexicon Garden. Together, explore every leaf in Shrubbery of Scribes, every petal in the Flower Pots of Poets, every tree in the Forest of Free minds, and more.
For how happy the Headmaster seems to show people around his garden, he shall be happier to hear your thoughts on the things you have seen, read, or heard along the way. Do not feel pressured though, as he is sufficiently pleased just by having people explore around his precious sanctuary.