maybe you can read to your baby? I read to mine regularly since she was about 2 to 3 months, and now she gets very excited and happy when i take her favourite books out to read.
my ger also likes going out, and going to the zoo, and going swimming.
I'm reading this book, by miriam stoppard, baby's first skills, and it's really useful cos it tells you what you can do with baby at every month till baby is one year old.
can try finding similar books in the library?