You can share assets in a number of ways. First, add assets to the Selection panel. To share via email, click the Share button and select Share via Email. Recipient(s) will receive an email with a link to download the assets.
You also can share a group of assets as a collection. Add assets to the Selection panel, then click Share as Collection. Enter a collection title and select recipients, and they'll receive an email with a link to view and download the collection.