Baby Development - 5 Month Old Baby
By this time, will most babies roll over? Yes, Roll from his back to stomach.
Between the ages of five and six months, your baby may do the following:
Turn his head at the sound of a hand bell, Voice her objections with cries, sit up with some propping, object noisily when something is taken away from her. Recover a toy when he drops it, reach for paper. Sigh artificially and know she's cute. Play with bath water , tub bath for baby. Discriminate between a stranger and a familiar person.
Here are links to information of a 5 month old baby:
4. Baby Crying