About someone elses kid...

What would you do if you saw a friend not doing the right things when it comes to there 1 month old? She is not supporting the babys head at all an just let's it flop around an the baby starts to cry. She doesn't warm up the baby bottles at all and will force it in the babys mouth even if it isn't showing signs of being hungry. He has gained 3 pounds since birth an doctor did say something but she lied an said she only feeds him 2oz every 3 hours when we hung out she fed him 4oz 2 times in a 4 hour time. When she changes diapers she doesn't wipe unless its a poop an will just take off a diaper and put a new one on.