Jennifer Duffy isn’t afraid to yell a little, probably because she can do so and make it look like something encouraging.

“I think the kids love me because I yell at them with a smile on my face,” said a laughing Duffy, moments after her Haven Beach Club swimmers scored a 293-164 victory over Brant Beach Yacht Club on July 7. “It’s summer swimming and we’re having fun, but we’re trying to get better.”