You are a student who is interested in the project and e.g. wants to be part of it.
You do not belong to any of the other groups, but are interested in me.
You are a scientist who is e.g. interested in collaboration.
You are a media representative who e.g. wants to report on me.
You are a decision-maker from the industry who is e.g. interested in how I can be used to increase attention for your company or product.