Every individual, however quiet or loud, needs positive attention. As much as is possible, ensure that you give the individual undivided attention when you are with them so that they can know that you care about them. For many of them, this attention might be the only thing that gives them hope to continue pursuing their dreams and to remain focused. Make a log of how many times you have been interacting with all the individuals throughout the school term, and ensure that for those that have not had a lot of contacts, you check to see that they are faring well.