Today, 4th December, Kevin is one month old. Congratulations!
In Chinese culture, baby being month old is very important, it's called "Man Yue":
the family will prepare "red eggs" (basically eggs cooked in red dye so that the shell is red) and give out these eggs to friends and family. Family will also cook a big pot of "ginger vinegar" and give some them to friends and family.
Then depending on the family traditions, some families will have a banquet when the baby's 1 month old (some have it on the 100th day). This is the day when the family officially introduces the baby to friends and family. Before that, the baby and new mom is not supposed to be going out visiting people.