It is proper Netiquette to define your product. For example, why be friends. Then, connects me to the network. Do clearly state the benefits.
Product Netiquette Marketing
A product is more than an item purchased. It is the entire process of purchasing it and brand that stands behind it. The product definition is the process of purchasing it. Online it is common for content to include a call to action. Well written content centers around the call to action that has a clear path to purchase.
Outline content. Include a diagram with the purchase path in the call to action. Write several drafts. Make sure the call to action can be identified. Advertising is a more extensive process for professionals that includes Pay Per Click and Social Media Optimization beyond the scope of general netiquette.
Define actions for users to take because clear instructions get results.