To get wishes in Genshin Impact, you will need to use a currency called "Primogem."

You can earn Primogem in various ways, such as completing quests, defeating enemies, opening chests, or logging in daily. You can also purchase Primogem with real money. Once you have enough Primogem, you can use it to make wishes on the gacha, which will give you a chance to obtain new characters or weapons. Keep in mind that the gacha is a random draw, so you may not always get the specific character or weapon you are hoping for. However, you can increase your chances of getting a particular character or weapon by using the "featured" or "guaranteed" banner, which will increase the probability of getting those specific items.

In Genshin Impact, the currency used to purchase "wish" packs is called "Acquaint Fate" and "Intertwined Fate". Acquaint Fate is more common and can be earned through gameplay, while Intertwined Fate is rarer and may be more expensive to purchase outright. Both types of Fate can be saved up and used to redeem better rewards.

To obtain characters or weapons in Genshin Impact, you can try your luck by participating in the game's gacha system, also known as "Wishes".

To access the Wishes screen, go to the Pause Menu on a PS4, or click the star icon on mobile or PC. On the Wishes screen, you can browse through different banners and choose which ones you want to try for. The game will let you know which currency these banners use, and you can choose to purchase one Wish or a bundle of 10 Wishes. Keep in mind that the rewards are randomly generated, and the odds of getting a particular character or weapon are displayed in a details box at the bottom of the screen. It may be more cost-effective to save up for a bundle of 10 Wishes rather than purchasing them individually.

It's generally a good idea to save up your Fates in Genshin Impact and buy them in bulk, rather than trying to get lucky by purchasing rewards one by one. While it may take longer and require more resources to wait for a bulk purchase, it is more likely to result in a high level pull. Additionally, some banners may offer discounts for bulk purchases. However, the specifics of discounts and the chances of getting a high level pull will vary depending on the banner you are pulling from. In general, it's best to wait and save up your Fates for a bulk purchase rather than trying to game the system by buying one by one.

To obtain Acquaint Fates and Intertwined Fates in Genshin Impact, you can purchase them with real money or earn them through in-game activities.

Some ways to obtain these Fates include leveling up, completing tasks and quests through the Adventurer's Guild, and converting other in-game rewards into Fates. Additionally, the game will award you with 10 Acquaint Fates for reaching Level 5 and 10 for reaching Level 10, which can be used for high level character summons. Keep in mind that buying Fates with real money does not guarantee that you will obtain the characters you desire, as the game uses a random draw system.