Thanks to @manton for updating the bookmarks JSON api this afternoon to include tags so now you can use @sod’s wonderful bookmark plugin to display them (assuming you have the premium Micro.blog plan). You will need to use a custom template like he details in his documentation. The trick is to use the {{ .tags }} inside the {{ range .items }}. Here’s how I’m doing it on my site:

{{< bookmarks >}}
{{ range .items }}
{{ $url := urls.Parse .url }}
{{ if not (hasPrefix .id "link") }}
<figure class="bookmark">
<blockquote>
<p>{{ replace (replace ( .content_html | plainify | truncate 300 ) "Reader: " "") $url.Host "" }}</p>
</blockquote>
<figcaption><cite><a class="u-bookmark-of" href="{{ .url }}">{{ $url.Host }}</a><br/><small>Bookmarked: {{ time.Format "Jan 2, 2006" .date_published}}</small><br/><small class="tags">{{ .tags }}</small></cite></figcaption>
</figure>
{{ end }}
{{ end }}
{{< /bookmarks >}}

You might have noticed I further customized it with longer preview text and some extra replace statements. That’s because the .content_html includes some extra links to the micro.blog reader text which looked a bit strange after you stripped out the html with plainify. That’s where the {{ replace (replace ( .content_html | plainify | truncate 300 ) "Reader: " "") $url.Host "" }} line comes in.