Request a meeting: Is a good idea to request a meeting, especially with superiors, because usually they are busy and you will want to capture all of his/her attention. When you request a meeting, you can be sure that the other person will pay attention to your concern. Usually this type of meetings doesn’t last very long. Remember that our bosses are busy. A half hour to an hour will be enough.
Present your concern: Don’t be afraid, present your concern. Be open and honest. Ask why you were not considered. The majority of the times you will be surprised that a) there was not a reason behind, they just didn’t think about you or b) you can realize the reason behind the decision. At this point, you will have the opportunity to clarify the perception or you can ask how you can perform better or in a different way in order to be considered in future projects.
Present your point of view and the reason(s) why you consider you will be a great asset to the team: If the reason is they didn’t think about you, sell yourself and present your ideas. Showing them that you have the experience and knowledge, as well as the skills and background that can benefit the team selected. If you are still not considered, at least they will have an idea of who you are and it will be a possibility in the future that they will select you. Remembe: be clear, concise and simple.
Discussion and answer of questions: Be prepare to defend your ideas, also to answer questions. Usually the other person just wants to better understand your point of view. Other times they just want to know if you really have the knowledge and the experience that you said you have. Don't be afraid to sell yourself and tell them about your experience and knowledge. An excellent way to do this is telling stories.
Conclude the meeting: Always conclude the meeting in good and positive terms. Most of the times a diplomatic conversation is more valuable and can open other opportunities.
If necessary, always follow up the conversation: If after the meeting you get a possibility to be included in the team, always follow up the conversation to show that you are interested.