I am 22. So I can only speak from a son's perspective.
Pictures of your child are good. But don't take any naked pictures, that's not cool (especially if you show their friends later in life)
Encourage them to play team sports (emphasis on encourage)
Don't push them to do anything against their interest (piano, football, math... whatever) You are only wasting time and money
Pass him down something meaningful (a watch, a knife, a jacket...)
And finally, Love your...