How can I make my son say any words? He don't say anything &he got no teeth until now, is that normal

How old? Please tell us how old your child is before any opinion can be given. Thanks.
Depends. It depends on how old your child is. If your child is >15 months old and not speaking yet, see your pediatrician. You can read: http://sparkspeds.Blogspot.Com/2011/07/major-speech-milestones.Html to learn more.