Tourist card & souvenir tokens
When you buy the Tourist card, immediately place a Souvenir token in your current borough. You then gain 1 star and 1 energy. Then, each time you change boroughs during the movement phase, you have the ability to place a Souvenir token. You gain 1 star and 1 energy each time you do this. You can only place a Souvenir token in a borough that doesn't yet have one. This card text is applicable for the rest of the game as long as you own the card.