Some quick milestones:
3 Days: Supporting head
20 Days: Begin studying faces
11/12 Weeks: Begin noticing and reaching for objects/toys
4 Months:  Begin rolling over
–  Begin grabbing objects with intent
–  Begin drinking water (from a cup)
5 Months: Begin laughing(!!)
5.5 Months: Sitting on own
–  Begin solids (we’ve slowly introduced banana, avocado, infant oatmeal cereal, less than 1x/day)
–  Showing early signs of crawling. He’s really working on this!
