Yesterday, O2 launched their #WaggyTails campaign on Twitter. Using the hashtag, the network invited UK consumers to tweet for treats. Serving Millie’s Cookies in the morning, Pizza in the afternoon and ice cream in the evening, the brand and their hashtag were trending by the end of the day. They were also offering free O2 Priority cinema tickets to tweeters as well. To further amplify the campaign, the brand kitted up Made in Chelsea’s Jamie Laing with a moped and a fluffy tail. #waggytails 🍪🍪🍪 out to deliver. Taking 🍕🍕🍕 orders from 10.45. Keep tweeting “I’d LOVE free #O2Priority cinema tickets” with…