If you wish to leave an update, sign into your profile, and under 'How is your day?' Choose 'Good', 'Bad', or 'So/So' depending on how your day is going.
Next type what you would like to share in the field. You can attach a photo, or a link by using the orange buttons below the field. When you are finished click on the 'post update' button.
To edit something you have already posted click on the small circle button with the white 'V' to the right of your post and select 'edit post'.
Type any changes in the box below and then click on 'Save'.