Arrived in Prague

We have arrived in Prague after a 4 hour long train ride with a VERY strange German man who wore a raincoat the entire journey inside the cabin. We are hoping to do a walking tour today to see Prague fully by foot and then are meeting a friend this evening who we met in Berlin. We are also trying to decide if we should go back to Berlin on Sunday for the football and whether that is then worth the 12 hour train ride to Budapest on Monday...?