Voracious

Here we see Sam sucking on the spiky velcro connector part. He likes to soak fabric with saliva, then suck the saliva out. 

Here we see Sam employing his soak-and-suck method to the strap on his stroller seat, and to 

a monkey.

Sam is showing Josh where to put the cereal.

Here, he shows Jen where to put the prunes.