An ad spotted on the subway for Luna Park:

[caption id=“attachment_1169” align=“alignnone” width=“540” caption=“Luna Park Subway Ad”][/caption]

The ad says “Follow Us” whereas each site offers different vocab for interaction:

• Facebook - Like (to follow) company pages / Share posts & links
• Twitter - Follow profiles / ReTweet tweets
• YouTube - Subscribe to channels / Watch videos
• Flickr - Add contacts / Tag photos
• Foursquare - Follow brands / Check-in to venues