how to teach baby to speak?

My firstborn is 3 and a half. Pautal utal pa din, sometimes it bothers me lalo pa at mahilig magcompare sa ibang bata ung byenan ko. Bakit eka di pa nagsasalita etc etc. So I asked ung pedia nila if I should be worried, he said na hindi, tatatas din daw ung anak namin. Ang importante daw eh nasasabi ung gusto at naiintindihan kami. Different kids have different timelines and milestones. And though our son isnt as matatas as the others matured naman cya magisip. Advanced naman cya sa ibang bagay