Panic...then realise you're the new ruler of the woorld
Go to ASDA and eat as much as I can then get pissed on all the free booze. Nick some cars, drive to the local farm, kill a cow and cook it on a fire.
Drive to Villa Park and take free kicks on the pitch. Break into people's houses.
Break into the nearest pharmacy/hospital and have myself one hell of an afternoon.
How would you know you were the only one left?
Rob the bank.
Then realise there is nowhere to spend my money since everybody has disappeared...
Walk everywhere stark naked and play the organ like a madwoman
I saw a play about what would happen if humanity disappeared. So if I was the only one left, then after a few days there would be no electricity, no heating etc. Not sure how I could get a car to travel as it would only have so much fuel in it.
I don't know how to make food or tools or whatnot so my only chance of survival would be alien intervention. So I'd try and send a signal out to the universe of them to see and help me.
I'd die waiting.
Figure out how to fly a plane and loot the world (assuming I don't crash).
is the wifi still working?