I found a great article that reveals 5 secrets to raising a smart baby. Here's the list:

1. Bond with your baby. Any new mom is told about the benefits of skin to skin contact. Any closeness and interaction with your baby creates a bond and a sense of safety and security. Another thing that makes your baby feel safe and secure is the bond between his parents. It is important for parents to make time for one another and keep arguments or marital stresses away from baby.
2. Narrate your day. As you go through your day simply explain what you're doing or looking at. If you're drinking a cup of coffee tell your baby you're drinking hot coffee. Use plenty of discriptive words as you speak to broaden your child's vocabulary. Use a tone of voice that your child reacts to. Drag out vowels because it helps the child identify different sounds. If you speak in a higher than normal pitch voice it is easier for your child to imitate.
3. Face time. It's not just an app on your iPhone it's an actual activity. Make faces at your baby. Funny faces are great, but you should also show your baby different expressions that depict different emotions.
4. Limit bucket time. This refers to children being locked down in "buckets" like strollers and car seats. You'd be surprised how much time the average kid spends stuck in car seats outside the car! To learn about the world around them they need to be allowed to experience it. To experience it they need to see it, feel it, taste it and hear it. When they're confined they can't do that. Let your child roam and play.
5. Point your finger. My mother always told me that pointing is rude, but in this case point away! When you point and say the name of the object you're pointing at it helps your child associate things with the sounds coming out of your mouth. Your child will actually learn words faster.