Si.mobil, one of the two leading mobile telephony operators in Slovenia, has been developing its Re.think campaign together with Kaaita for a few years already, aiming to raise environmental awareness. This time with the You are Energy campaign, it emphasizes the need for rational use of energy sources. A part of this campaign is a subtly designed stage, where attendees at events showcased by Si.mobil, can use Big Fish bicycles, retrofitted into exercise bikes, to try and experience what they can accomplish using their own energy. They can light up the room, play a nice tune, or charge their mobile phone.