Summarize this article:

While the elements of the routine stay the same (eat, play, sleep, in that order), the length of the elements and the strategies you might use will vary as your child becomes more aware, interactive, and alert during the day and more conscious of your absence at night.  At 6 months old, most babies should not need a nighttime feeding, especially if he/she is eating solid food during the day.  When your baby begins to sleep through the night, you can stretch the period of activity to 2 to 2.5 hours of playtime between naps. There will also be times when you may need to be flexible with the schedule, such as vacations or when you need to run errands that take longer than 2 hours. During nap or bedtime, babies of this age often "talk" to themselves or babble, or cry out of tiredness to help themselves fall asleep. It's important that you don't rush to her before she has had a chance to settle in for sleep. Listen to the sound of the cry.  The most common signal that she wants to be comforted is your child holding out her hands to you. When you pick her up, hold her in a horizontal position and say soothing words before placing her back in the crib. If she gets more upset, walk away from her crib and avoid eye contact. You may be a distraction. At this age, your baby has become more aware of your absence and may benefit from an item that can help comfort and sooth her to sleep, such as a small, soft blanket or favorite sleep-safe toy. If possible, try to use the same object at every nap and bedtime, and try to keep the toy or blanket in the bed only. This way, the baby will learn to associate the transitional item with sleep and not with playtime, and will be more likely to use it to sooth herself to sleep rather than playing in the bed.

Summary:
Adjust the routine as your baby grows. Watch for your baby's cues before you pick her up. Introduce a transitional item.