Underneath each post you'll see a react button which you can use to show how you feel about that particular post. You'll find 5 options to choose from for your reaction; Like, love, Inspired, Shocked and Confused. Following are the steps to be followed to React to Posts
1. Click Groups
2. Now Click on the group which you want to react on.
3. Click on React
4. Choose and click on any one of the reaction: Like, love, Inspired, Shocked and Confused.
5. Now Click on React to see who else has reacted to this content