# Earning rules Perkville allows you to set up a variety of earning rules within your loyalty program, each designed to cater to different aspects of customer engagement. These rules enable you to reward customers in ways that align with your business objectives and enhance their overall experience. {% embed url="" %} Here are the types of earning rules you can establish on Perkville: * **Birthday**: Reward customers with points on their birthday. * **Custom**: Create bespoke rules tailored to specific actions or events that are unique to your business. * **Referral**: Encourage and reward customers for bringing new clients to your business through referrals. * **Twitter**: Reward customers for tweeting about your business or following your account. * **Activities**: Track activities without rewarding points for them. These activities can be used toward completing challenges in Perkville or triggering completed referrals such as when a referried friend buys a new membership at a gym. Explanations of each type of rule are available on the subsequent pages, providing you with all the information needed to effectively implement and manage these earning opportunities within your loyalty program.
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