open house – n. an event in which an organization (such as a school or company) invites the public to visit in order to see the things that happen there
freshmen orientation – n. the process of giving first year high school or college students training and information
mentor – n. someone who teaches or gives help and advice to a less experienced and often younger person
extracurricular – adj. extra activities that are not part of the regular schedule of school classes
mandatory – adj. required by a law or rule
specific – adj. precise or exact
visualize – v. form a mental picture; imagine
retain – v. to keep something in your memory especially for a long period of time