Quote 1
In the library I found, to my great delight, a vast number of English books, whole shelves full of them, and bound volumes of magazines and newspapers. (2.28)
Dracula learns about Englishness by reading English literature. Just another thing that Dracula and non-English Shmoopers have in common?
Quote 2
"I long to go through the crowded streets of your mighty London, to be in the midst of the whirl and rush of humanity, to share its life, its change, its death, and all that makes it what it is." (2.30)
Of course Dracula wants to be "in the midst of the whirl and rush of humanity." He'd be like a kid in a candy store! So many people to feed on, so little time. That's the trouble with Transylvania—there just aren't enough people.
Quote 3
"Well I know that, did I move and speak in your London, none there are who would not know me for a stranger. That is not enough for me. Here I am noble; I am boyar; the common people know me, and I am master." (2.34)
Dracula realizes that he'd be easily picked out as a foreigner in London and he just wants to blend in. It sure makes hunting easier when folks don't realize you're a vampire.