1- Contact info
You can add your contact info on your store by going to Appearance, then Contact info and fill your info, then Save Changes
2- Social media
From the store dashboard, click on 'Appearance', then 'Social Media'
Copy and paste the URLs for the social media accounts you want to add, then click 'Save changes'
And this is how your social media accounts look on your store
Next step to continue customizing your store, go to: