He needs you to talk to him, love him and give him lots of different experiences.
You can talk to him about anything. Just talking is teaching him his native language and how to have conversations. He will be learning how to take turns making sounds and he will take pleasure in hearing the sounds he makes repeated back to him.
Reading is teaching him language too and how to link familiar sounds to familiar pictures. He is learning how books are used and that they are fun - both really useful.
When you take him out, he gets new sensory experiences, learns that you stay close and help him feel safe. He learns to recognise familiar places and the routines that go with them and to enjoy new places.
When you spend time with others, he learns conversation and social skills from them too.
Watch what he can do really carefully and work out what skills he is developing. Make him a treasure box of items that aren't usually offered as toys that he can explore with your supervision and support to keep him safe.
If he's learning to pick things up, give him lots of items he can grasp easily and one or two that are a bit trickier so he learns next steps.
Play your favourite music and dance with him in your arms. Help him to feel and enjoy the rhythm and mood of the music.
Watch him really closely and think about what the world must look like to him. Ask yourself what he knows and understands and then enjoy seeing his understanding develop as he explores the world. He will drop toys on the floor over and over again but, one day, he will realise that they continue to exist when they are out of site and lean over to look for one on the floor.
You don't need fancy toys, qualifications or other babies around you. You are all he needs right now because you love him and are teaching him oodles of skills every day just by enjoying him and involving him in your daily life.