Introducing solid foods

i found this from Baby center.. and i find it really informative even for 2nd time mom like me..

How will I know when my baby's ready?

Your baby will give you clear signs when he's ready to move beyond liquid-only nourishment. Cues to look for include:

• Head control. Your baby needs to be able to keep his head in a steady, upright position.

• Losing the "extrusion reflex." To keep solid food in his mouth and then swallow it, your baby needs to stop using his tongue to push food out of his mouth.

• Sitting well when supported. Even if he's not quite ready for a highchair, your baby needs to be able to sit upright to swallow well.

• Chewing motions. Your baby's mouth and tongue develop in sync with his digestive system. To start solids, he should be able to move food to the back of his mouth and swallow. As he learns to swallow efficiently, you may notice less drooling. He may also be teething around the same time.

• Significant weight gain. Most babies are ready to eat solids when they've doubled their birth weight (or weigh about 15 pounds) and are at least 4 months old.

• Growing appetite. He seems hungry — even with eight to ten feedings of breast milk or formula a day.

• Curiosity about what you're eating. Your baby may begin eyeing your bowl of rice or reaching for a forkful of fettuccine as it travels from your plate to your mouth.