To share how you're feeling or what you are doing, start by signing in to your profile. On the top banner click the Pencil icon. 

Under How is your day? there is a field for you to enter your status update. You have three options to choose from: Good, Bad or So/So

Along with your update, you can attach a photo or post a GIF by selecting one of the buttons below the post field. 

Once you’ve added your feeling or activity, select the orange arrow to Post: