First couple of years of your child is super fun. You will see him/her crawl, stumble, take first steps, walk, and run. You will hear his/her first words.
The primary focus for first 3 years is to keep them safe. These are child’s exploration years. Some call it terrible two. However, if you handle it well it will be wonderful two.
Their physical development would be quite fast. It will start from rolling over to crawl, stand up, walk, climb, jump, fall etc. It is perfectly normal. Be prepared for it.
In the early years your child will try to bite, lick everything he/she can. He/she will try to climb everywhere. That is perfectly normal. If they do not do it, then you need to be worried.