Different Cry!
Crying is the only emotion baby expresses in their early four months of life. It is very difficult for parents to understand what baby wants or their uncomfortable many such things. There are different types of cry which will explain like,
A calling cry
When baby is alone for long time they want their parents to pick them up. If they cry for 5 to 6 seconds and then stop for 20 seconds as they wait for the result.A Cry For Hunger
It is same like calling cry but if you don't feed the child, the cry will be continue.Baby might also keep rotating their head, making smacking sounds with their mouth.
Secret
A Cry Of Pain
This crying will be loud, and constant. However, if the baby is sick, their cry can also be quiet, because they don’t have enough strength to make loud noises.A Cry Of Sleepiness
When the baby wants to sleep but can’t get sleep for some reason, their cry will soften and will keep yawning. The baby will also rub their eyes and ears.Sound They Make
’Neh’ - “I’m hungry!â€
This sound is when the baby pushes their tongue up to the roof of their mouth and make sound.’Eh’ - “I’m gonna burp!â€
When too much air start to leave the baby’s esophagus and it tries to release it from their mouth.’Owh’ - “I’m sleepy or tired!â€
When babies are extremely tired they fold their lips before yawning.
Sound Of Pain
’Heh’ - “I’m feeling uncomfortable!â€
Unpleasant sensations make the baby move, and they start jerking their hands and feet. When the baby’s mouth is slightly opened this happened.’Eairh’ - ’I have gases and pain in my tummy!’
The sound turn into a moan when a baby tummy and exhales while trying to get rid of the pain.Actions Of Babies
Rotating their head
Baby do this when they might fall asleep or around unknown crowd. This is a calming movement for the baby.Grabbing their ears
You should consult the doctor only if this movement is followed by crying and repeats often.Fist closing
This is a sign of hunger. If you notice on time than you can prevent the crying caused by them being hungry.
Action during the pain
Lifting their legs
This is the sign of tummy pain. The baby is trying to ease the pain.Jerking their arms.
This movement means that the baby got frightened. A loud sound, bright light.
Doctor Suggestion
Pediatricians often suggest that talk with your baby as much as u all can. It will help them to quickly start to communicate with loved ones and it also helps them develop better.

Psychology Process
A cry of physiological processes. Even gas, urination, can initially cause discomfort in a child.

Discomfort cry
This crying is irritated a lot. The baby gives a hint to check their diaper or they might be feeling too cold or too hot in their clothes.

Experiment
Thousands of babies of different nationalities have taken part in this experiments.