Yeah...book (or movies and TV shows) usually don't make me cry, but I totally cried when reading Harry Potter 6 and Marley & Me too.
About laughing...certainly, I tend to laugh at lots of things
Yeah when i read the book the outsiders i laughed in some parts and the end was so sad because I'd gotten so close to the characters as if i knew them i balled but i highly recommend this book sad ending or not everyone should read it you can really relate to it its my favorite book at the moment its one of the few novels I've read more than once its the novel that got me back into reading i recommend if you like the audio books you get unabridged version on itunes its got a guy with a good voice reading it.
I laughed at some points in Harry Potter. I also cried at every death in the books. At the end of Deathly Hallows, I cried loads.
I laugh alot reading diary-style books, espeacially the Georgia Nicholson books.
In Harry Potter whenever Fred and George did/said something hilarious, and sometimes when Ron does/says something funny. And a few other parts as well. I also cried in Harry Potter when Dumbledore, Sirius, Fred, Lupin, Tonks, and a few others died. So sad.
I laugh out loud while reading books all the time :P The people around me always are like "What the hell are you laughing at?!" Its funny... as for crying I do occasionally mainly while reading the Harry Potter series </3
I don't do that often when reading books, but I remember laughing out loud MANY times while reading Douglas Adams' "Hitchhiker's Guide to the Galaxy", and also in Harry Potter 6 at that wonderful scene when Snape asks for Harry's Potions book and finds the name "Roonil Wazlib" written in it. I still giggle when I think of that.
HP made me cry, too, but only one time, when Fred died. I was sad atr all the other deaths, too, but killing Fred was just not fair of JKR. Not. Fair. *sniff*
I laughed in Harry Potter a lot, because it is full of funny stuff, and I also cried at the end when Harry looks around the Great Hall in DH and sees all the people that died for him. That's pretty much the only time, because I don't cry much while reading books.