When Antonio (his OLTL character) would get upset/angry/indignant, Reyes would let out these little puffs of air between lines and some people found it distracting. I guess it was an acting choice of his to emphasize how riled up he was, and lord knows they enjoyed writing him in a near-constant state of upset. So some online commenters took to calling Antonio "Huffy" which I thought was mean but the actor joked about in interviews after he'd left the soap.