What type of toys will you introduce to a going to 4 mth old infant?

If you haven't already, introduce books now. When you read to your infant, say the names of the objects, people, and animals as you point to them, and make the sounds of the animals and the objects in the book. Choose baby books with simple pictures and faces and those with lots of textures to feel, like Pat the Bunny. Also look for cloth, vinyl, and sturdy board books that won't rip and can withstand a little drooling and chewing.