This is something that should be watched, but naturally weaning from some feedings each month is normal. Just remember that complete nutrition comes from the breastmilk baby receives during the introduction stage of solid foods. Baby often shows interest in other people's food by intensely watching someone eat, making cooing noises or fidgeting when he sees food, and trying to grab food from your plate or hand. Lots of babies are more interested in the utensils you are using rather than the actual food, so let baby play with infant spoons or a plastic bowl while you eat. This will also help baby get used to handling these items.
Baby can sit without support.
Let baby try sitting in a high chair with some toys to see how well he balances himself with a tray in front of him. Be sure to strap him in securely every time he is in the highchair. His need to nurse increases. Babies go through growth spurts before the sixth month, so be careful not to confuse a temporary growth spurt with an increased appetite that comes on gradually. Once you have seen your baby develop a more frequent nursing pattern at about six months of age, you can assume he would like more food added to his diet.