That way, if you decide to write a review to promote it or send the affiliate link for the product's sales page to your email list, etc., you will have first-hand knowledge of how it works. This will help you to decide it the product has real value pertaining to your niche. I, personally, won't sell anything I haven't tried myself to be sure they work as advertised. Selling just to make money with no real value is a sure way to lose customers and ultimately destroy your business. Bad reputations are hard to get rid of once you get one, especially when there's money involved. With that being said, I hope you all have a great holiday season.
Use your personal words & experience with the product. Your own content, or photos & videos of yourself using the product are always the most effective. For example, many affiliate programs provide swipe copy to their affiliates which is pre-written emails, post material or social media posts. These can be helpful as a guide, but they often scream swipe copy, aren’t written in your voice (the one your readers know!) and if a lot of affiliates are using it, are overdone.
The reality in affiliate marketing is that it's like most other work-at-home ventures; there are a few who are filthy rich, a good number who are successful enough to meet their goals, and a ton who aren't making anything. So, the question isn't really whether or not affiliate marketing is a viable income option (it is), but whether or not you can make affiliate marketing work for you. Only you can decide that. But to help, here are some tips.
When promoting affiliate offers, just make sure you are fully aware of all the terms and conditions attached to your affiliate program. Some programs can be strict about how they allow you to promote their products. For example, some may limit you to banner ads and links only, while others will allow you to use paid advertising, but won't allow email marketing.