To navigate to the style properties, go to ACP → Appearance → Styles & templates → Style properties → [TH] Reactions Plus.
Condensed summary - This is the default XenForo display method and will condense the summary.
Show counter on reaction summary - This option will display the number of each reaction given. This option does not work very well with the condensed display.
Minimum number of reactions to show count - Set the minimum number of reactions you would like for a count to be shown.
Reaction count styling - There are several styling options in this section.