Relax! Schools here teach English, French, German, Spanish.. Students need to pick two, and of course English is the most chosen one
That commercial has reminded me! If you're in Lisbon, take a walk on the Parque das Nações (Nations' Park, or Park of the Nations). It was Expo 98's location, at Tejo's marginal. It's a beautiful place to take photos. VISIT THE OCEANARIO!!! It's one of the most exquisite oceanariums in existance. If something interests you, watch a show or concert at Pavilhão Atlantico (currently named MEO Arena). It's a closed concert room with incredible acoustics and atmosphere.
All these things are located in the same squared km, very identifiable. You can also ride the teleférico.
Here's pictures of everything (sorry for the pictures sizes, please scroll left and right):
Parque das Nações
Oceanario
Pavilhao Atlantico
Teleferico