You also may notice your baby stretching and kicking his or her legs. This movement strengthens leg muscles, preparing your infant to roll over, which usually happens around 4 to 6 months of age.
Do babies kick their legs when happy?
At this stage she is often happy to smile and interact with strangers because she is getting so much pleasure from smiling and interacting with you. You and she will be having ‘conversations’ with each other, and she will be getting excited at the feeling of you responding to her, and kick her legs and wave her arms.
Why do babies like kicking their legs?
When a baby puts their hands over the eyes, it could mean he or she is feeling playful or tired. How to respond: Share her enthusiasm: Kicking her legs helps her develop the muscles she needs to crawl.
Why does my baby stretch and cry?
Back arching is a common reflex that babies exhibit when they suffer from very acute or strong pain. So if a baby is flexing her back when she cries, it may be more than just the normal baby pains.