can be found in a volcanic crack after 10+ days have passed in the game. You'll also find the gold pan in a volcanic crack (after 7+ days in the game). The items found in the crack are 100% random, including the chance a villager might not find anything. The only way to guarantee that you get something from the cracks is with the Lemur!

The most common way is to keep training your villager in all skills - practice makes perfect! Note that a villager's skills are related to your village's technology levels as well.

You can also play the wheel spin game and hope that you win a "Perfect Villager" stone for your villager's necklace. The spin wheel is a game of chance and the prizes are completely random. Additionally, each individual villager can only wear one necklace at a time. Every time you re-spin the wheel you are essentially removing the necklace from the villager and placing a new one around their neck. The villager will only have the skills associated with the current necklace around their neck.