Under the theme settings you will find a number of configurable settings options. Here you can change the logo, toggle theme features, change header style, add a links to your social profile pages, etc.
To go to Theme Settings page:
To change the logo:
Click the Header tab and chodose a header style for your page.
Click the "Social Media Pages" tab to add links to your social media pages.
Click on the Content tab and choose the Date format and the author info on the teasers. In some cases you'll have to clear the Drupal cache to see the changes.