There are currently a few items on the street that could have more use:
-Magazine/posters: These could show a casino that is running leaflets. This could give random reward for visiting that casino. E.g. "50 chips for free to try out our new slots!" --> actually a mission: go to casino x and when you enter you get 50 chips.
-Sewers: Clicking it is like a lottery: you can find some chips or an item or in 80% chance nothing of interest. This will give a bored player something to do.
-Litter: Clicking it puts it in inventory. This could be brought to NPC/Shop to get a reward. (Morale boost, chips, xp, mission). This could then be used to make the world feel more lively --> random litter is generated when an item is brought back. And clicking the litter makes it disappear, so you get a world that is visually changing.
-Fountain: Random small reward like a few chips can be found or chips thrown in for "good luck".

All 4 could make a mini game appear like a bejewelled, yahtzee, other casino dice game.

Player could look/dig/scavenge for items on land. Like find things in soil/plants. Rewards could be: 1XP (5% chance), 10 chips (50% chance), 1CP (0.5% chance), clothing item (1.5% chance), nothing (43% chance)