Huck's take on getting "sivilized" in the first chapter. Especially this:
After supper she got out her book and learned me about Moses and the Bulrushers, and I was in a sweat to find out all about him; but by and by she let it out that Moses had been dead a considerable long time; so then I didn't care no more about him, because I don't take no stock in dead people.
The bit where they actually have to let Jim out of the cell so he can help them carry something they need for his escape stands out.
Huck's increasing itchiness while he'll be caught by Jim if he moves.
Jim: Wunst I had foteen dollars, but I tuck to specalat'n', en got busted out.
Huck: What did you speculate in, Jim?
Jim: Well, fust I tackled stock.
Huck: What kind of stock?
Jim: Why, live stock.
This segment from Chapter 10, where Huck discusses bad luck:
Iíve always reckoned that looking at the new moon over your left shoulder is one of the carelessest and foolishest things a body can do. Old Hank Bunker done it once, and bragged about it; and in less than two years he got drunk and fell off of the shot-tower, and spread himself out so that he was just a kind of a layer, as you may say; and they slid him edgeways between two barn doors for a coffin, and buried him so, so they say, but I didnít see it. Pap told me. But anyway it all come of looking at the moon that way, like a fool.
Huck discovers he's been mistaken for Tom Sawyer. He's so happy to know who he's pretending to be that at first he doesn't realise the real Tom Sawyer is going to arrive soon.