People with an intrapersonal learning styleoften enjoy working by themselves because they trust themselves due to the fact that they know themselves so well. They are often intrinsically motivated and hard workers. Where as people with an interpersonal learning style enjoy working with others in partners and groups. They are encouraged by others.
Deciding which of these learning styles you or a student is can be confusing because they can overlap, as with any other intelligence. Just because you have an intrapersonal learning style doesn’t mean you don’t also have an interpersonal learning style to tack onto it. If you have both, you will feel comfortable in both settings but may prefer one over the other. I think of myself as having an intrapersonal learning style but I do work well with others when I need to. I prefer to work alone but do fine when working with others. I created a free multiple intelligence test, located at the link below, in order to help people find out which multiple intelligence they have and thus learning style.
http://www.teacherspayteachers.com/Store/Kasha-Mastrodomenico/Category/Activity-Templates-and-Rubrics offers many activities based on the interpersonal learning style and the intrapersonal learning style.