Walking in the positivity

If you are a poor chap who takes the train like me, you might find this familar. Yes,this outdoor advertisement is situated at the Dhoby Ghaut underground connector between the North-South line and  the North-East line.For at least two months, I have been walking past this everytime I return from gym . Honestly, I did not really stop to pay special attention to it until I realise myself picking up a can of the product at 7-11 yesterday. Amazing how successful this advertisment has influenced me.
Honestly, out of my vague memory, I still recall how I thought the slogan 'drink in positivity' sounded weird. What is positivity exactly? I drink to quench my thrist, not to get 'positive'. What am I? An ion? Okay. It just sounded weird but did not exactly put me off.
What is really amazing about this marketing effort is the clever use of their marketing space to register in my subconscious. The 'grass carpetting' to pave the path I walk everyday with their quotes on positivity links everything to their main slogan 'Drink in positivity'. Yes, why not?