\He should pursue his interests with seriousness and drive and persistence and curiosity. If he does that, it will show through on an application, regardless of whether any specific program is present on the resume. If he's doing things to look good on the application, let me tell you, interviewers and admissions committees are looking for that and we tend not to like it.
I went through those interviews over 20 years ago. They were very thorough. A couple lasted for over four hours over lunch one on one with Alumni. If a kid is punching tickets, it is going to show almost immediately.