Baby is coming up for his birthday soon, and it'll be obvious that he's no longer a completely helpless baby who was once 100% reliable on you. His walking may be coming along, especially if he is holding your hand and coming along the journey with you. He may now also be able to feed himself totally independently for an entire meal, only a little control of a spoon just now, so mostly fingers. Messy, but very cute!
He will probably eat a wide range of foods now, and will enjoy the different textures, flavours, and smells of everything. You shouldn't be seasoning with any additional salt or sugar, and the foods should be highly nutritious.
Now is the time to begin more advanced "no" commands. Hearing just "no" all the time can make baby start to ignore you when you say it. Instead, elaborate on "no" such as "no, that will hurt you" or "no, you will break it". This also has the added benefit of improving his understanding of vocabulary.