Onomatopoeia in Seven Ages of Man.
Sample line/words:
1. MEWLING and PUKING in the nurse`s arms
2. WHINING school boy
3. SIGHING like furnace 
4. WHISTLES in his sound

What it looks like and Sound it makes : 
1. Mewling is the sounds of meow while puking is like cry of a baby
2. Whining is you're irritated 
3. Sighing is like you're saying huuh while thinking your problem
4 Whistles its whistling 

How it moves :
1. Mewling and puking in the poem is like a baby crying or baby that needs something
2. Whining you're irritated to go at school
3. Sighing same on above ↑
4. Whistle like whistling