Age 7 months :

1. Start some types early crawling
   
   
2. Start can lift body to head for position stand up
   
   
3. Tooth stared to be formed and grow in this part of formation
   
   
4. Can understand their name in word that we say
   
   
5. Very glad at social situation and exhilaration marked leap to leap moment when they know its moment to play