All babies develop at a different pace, but by 12 months your baby might be able to
look for hidden objects (like a toy that’s rolled out of sight, or your face in a game of peekaboo)
home in on the correct picture in a book when you name it
pick up small objects or pieces of food using his thumb and finger
put things into a container and take them out again
sit up
pull him or herself up to a standing position
start trying to cruise (walking by holding on to furniture) or even walk
start to form recognisable syllables or say some words.