Richie:
- Slightly embarrassed that you saw him but turns into his usual self. 
- You slam the door shut. 

Beverly: 
- Not fazed by it like you were. 
- "Hey, so I was wondering if you wanted to go hang with the losers today?" She asked looking over to you.

Stan: 
- A stare down happens. 
- "Wow, never heard of knocking?" He asks not really fazed by you seeing him half-naked. 

Eddie:
- Screams and ducts behind his bed. 
- Has to get up to get his inhaler after you slam the door.