diff --git a/web/chat/inline-engagement.css b/web/chat/inline-engagement.css
index 1c7aceba0..27a000c0f 100644
--- a/web/chat/inline-engagement.css
+++ b/web/chat/inline-engagement.css
@@ -1,73 +1,78 @@
 div.inlineEngagementContainer {
   display: flex;
   flex-direction: row;
   align-items: center;
   flex-wrap: wrap;
   gap: 4px;
 }
 div.centerContainer {
   justify-content: center;
 }
 div.leftContainer {
   justify-content: flex-start;
   position: relative;
   top: -10px;
   left: 44px;
   margin-right: 80px;
 }
 div.rightContainer {
   position: relative;
   top: -10px;
   right: 33px;
   margin-left: 80px;
   flex-direction: row-reverse;
 }
 
 a.sidebarContainer,
 a.reactionContainer {
   background: var(--inline-engagement-bg);
   color: var(--inline-engagement-color);
   font-size: var(--s-font-14);
   line-height: var(--line-height-text);
   transition: background 0.2s ease-in-out;
   padding: 4px 8px;
   border-radius: 8px;
   display: flex;
   align-items: center;
   gap: 4px;
 }
 
 a.sidebarContainer:hover,
 a.reactionContainer:hover {
   background: var(--inline-engagement-bg-hover);
 }
 
+a.reactionContainerSelected {
+  border: 1px solid var(--inline-engagement-color);
+  padding: 3px 7px;
+}
+
 div.unread {
   font-weight: bold;
 }
 
 svg.inlineEngagementIcon {
   color: #666666;
 }
 
 div.messageLabel {
   display: flex;
   flex-shrink: 0;
   /* This is the height of the sidebar/reaction pills */
   height: 29px;
 }
 
 div.messageLabel > span {
   font-size: 12px;
   padding: 0 3px;
   color: var(--message-label-color);
   align-self: center;
 }
 
 div.messageLabelLeft {
   margin-left: 8px;
 }
 
 div.messageLabelRight {
   margin-right: 8px;
 }
diff --git a/web/chat/inline-engagement.react.js b/web/chat/inline-engagement.react.js
index f901d1d91..802652567 100644
--- a/web/chat/inline-engagement.react.js
+++ b/web/chat/inline-engagement.react.js
@@ -1,135 +1,141 @@
 // @flow
 
 import classNames from 'classnames';
 import * as React from 'react';
 
 import { useModalContext } from 'lib/components/modal-provider.react.js';
 import type { ReactionInfo } from 'lib/selectors/chat-selectors.js';
 import { getInlineEngagementSidebarText } from 'lib/shared/inline-engagement-utils.js';
 import { useNextLocalID } from 'lib/shared/message-utils.js';
 import type { MessageInfo } from 'lib/types/message-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 
 import css from './inline-engagement.css';
 import { useSendReaction } from './reaction-message-utils.js';
 import CommIcon from '../CommIcon.react.js';
 import { useOnClickThread } from '../selectors/thread-selectors.js';
 
 type Props = {
   +messageInfo: MessageInfo,
   +threadInfo: ThreadInfo,
   +sidebarThreadInfo: ?ThreadInfo,
   +reactions: ReactionInfo,
   +positioning: 'left' | 'center' | 'right',
   +label?: ?string,
 };
 function InlineEngagement(props: Props): React.Node {
   const {
     messageInfo,
     threadInfo,
     sidebarThreadInfo,
     reactions,
     positioning,
     label,
   } = props;
 
   const { popModal } = useModalContext();
 
   const isLeft = positioning === 'left';
 
   const labelClasses = classNames({
     [css.messageLabel]: true,
     [css.messageLabelLeft]: isLeft,
     [css.messageLabelRight]: !isLeft,
   });
   const editedLabel = React.useMemo(() => {
     if (!label) {
       return null;
     }
     return (
       <div className={labelClasses}>
         <span>{label}</span>
       </div>
     );
   }, [label, labelClasses]);
 
   const onClickSidebarInner = useOnClickThread(sidebarThreadInfo);
 
   const onClickSidebar = React.useCallback(
     (event: SyntheticEvent<HTMLElement>) => {
       popModal();
       onClickSidebarInner(event);
     },
     [popModal, onClickSidebarInner],
   );
 
   const repliesText = getInlineEngagementSidebarText(sidebarThreadInfo);
 
   const sidebarItem = React.useMemo(() => {
     if (!sidebarThreadInfo || !repliesText) {
       return null;
     }
 
     return (
       <a onClick={onClickSidebar} className={css.sidebarContainer}>
         <CommIcon size={14} icon="sidebar-filled" />
         {repliesText}
       </a>
     );
   }, [sidebarThreadInfo, repliesText, onClickSidebar]);
 
   const localID = useNextLocalID();
   const sendReaction = useSendReaction(
     messageInfo.id,
     localID,
     threadInfo.id,
     reactions,
   );
 
   const onClickReaction = React.useCallback(
     (event: SyntheticEvent<HTMLElement>, reaction: string) => {
       event.preventDefault();
       sendReaction(reaction);
     },
     [sendReaction],
   );
 
   const reactionsList = React.useMemo(() => {
     if (Object.keys(reactions).length === 0) {
       return null;
     }
 
     return Object.keys(reactions).map(reaction => {
-      const numOfReacts = reactions[reaction].users.length;
+      const reactionInfo = reactions[reaction];
+      const numOfReacts = reactionInfo.users.length;
+
+      const reactionClassName = classNames({
+        [css.reactionContainer]: true,
+        [css.reactionContainerSelected]: reactionInfo.viewerReacted,
+      });
 
       return (
         <a
           onClick={event => onClickReaction(event, reaction)}
-          className={css.reactionContainer}
+          className={reactionClassName}
           key={reaction}
         >
           {`${reaction} ${numOfReacts}`}
         </a>
       );
     });
   }, [reactions, onClickReaction]);
 
   const containerClasses = classNames([
     css.inlineEngagementContainer,
     {
       [css.leftContainer]: positioning === 'left',
       [css.centerContainer]: positioning === 'center',
       [css.rightContainer]: positioning === 'right',
     },
   ]);
 
   return (
     <div className={containerClasses}>
       {editedLabel}
       {sidebarItem}
       {reactionsList}
     </div>
   );
 }
 
 export default InlineEngagement;