The software program Skype allows anyone with a computer, tablet or smartphone to make free video and voice calls to anyone else who has Skype installed on their device or computer. It is an especially useful tool for grandparents who don't live near their kids and grandkids.

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You can attend a free workshop aimed at teaching older adults how to download and use Skype at Huntington Library, 338 Main St., on April 16, beginning at 2 p.m. For more information, call 631-427-5165.

The workshop will also be held on April 23 at Jericho Library, starting at 2 p.m. For more information, call 516-935-6790.