Understanding hunger cues will be extremely important in knowing if your baby is actually hungry as well as monitoring feeding times/diaper output. Babies can be fussy for many other reasons besides hunger. Signs a baby is actually hungry can include bringing hands to their face, rooting, making sucking noises, sucking their hands or fingers, and clenching of the fists/arms. Crying is a late hunger cue, so it is important to feed during early cues. Understanding stomach size and how much a baby should be getting will help mom understand.