You don't get paid for events in bookshops, but it means they order a supply of your books (these days, unless you're a best-seller, they generally stock single copies at a time, if you're lucky!). You can then sign them all: in case any new authors or illustrators don't know, signed books can't be returned to the publisher, so remain on the shelves until they sell. I'm a regular embarassment to friends, and often check bookstores and then ask if I can sign their stock - every little helps!
I read Gnash, Gnaw, Dinosaur! for only the 2nd time ever. It's takes me a while to warm up to a book and get familiar enough to add in bits of fun and interaction. I tried to do different voices for all the dinos. This one's quite funny if you give it a butch voice: though he's all fluffy and pink, he actually wants to be tough.