Both in the Burst app and on the Burst.com web site, if you go to the My Moments tab you will see a Select icon on the top right. Clicking/tapping that icon will put you in the Multi-Select mode and you will be able to choose multiple videos/photos to share with individuals or groups, or to Facebook or Twitter . The media items that you select will now display a checkmark in the upper right corner of the thumbnail, and simply tap it again to unselect.
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