If the person is a mom with young children chances are very good that she will buy toys or clothes for children.
A gamer will very likely be very interested in the newest games.
A fisherman can apparently never have enough gadgets for fishing.
I am sure you can see what I mean - if you know them it will not be too difficult to share or promote the correct product with the correct person.
If you do not know your potential customers you can always do a survey. Ask them to fill in a questionnaire that will tell you about their interests and their usual purchases online.
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Get to know your potential customers.
If the person is a mom with young children chances are very good that she will buy toys or clothes for children.
A gamer will very likely be very interested in the newest games.
A fisherman can apparently never have enough gadgets for fishing.
I am sure you can see what I mean - if you know them it will not be too difficult to share or promote the correct product with the correct person.