When does a child begin to wave bye bye?

A child begins to wave bye bye at the age of 9 months. Impoant milestones at 9 months: Standing with suppo Immature pincer grasp Waves bye bye Speaks bi- syllables like mama, papa, without meaning Bi- syllables babbling CAUTION : TIMING FOR USUAL APPEARANCE OF REFLEX IS NOT SAME AS TIMING FOR LABELLING IT AS RED FLAG SIGN bye bye : appears at 9 months red flag : if bye-bye not present at 12 months Red flag sign means the upper limit for age at which reflex if not present - is abnormal