The answer is 5

5 Selections of 5s -

Events:
1. 携手publication
2. Post-携手 huge RedBox session
3. Graduation day
4. Christmas party
5. Pangkor class trip

Venues:
1. Class A 011
2. Sunway Pyramid
3. Midvalley
4. Chor Yeng's house
5. (New addition!) Snowflakes

Songs:
1. Happy birthday
2. If you're happy and you know it clap your hands
3. 掌声响起来
4. 祝福
5. 思念是一种病

Habits:
1. Singing the birthday song. What else?
2. Always, always, always winning the cleanliness prize
3. Kai ma, kai zhe, kai yi ma
4. Occupying the whole walkway outside class, sitting along both sides doing last-minute revision for SPM
5. "[insert obscure excuse] So let's have another gathering."

Times during which you think of S5:
1. Staying up late at night
2. When you're happy
3. When you're not happy
4. Hearing an S5-specific inside joke and laughing to yourself, only to realise no one else got it
5. Saying something that sounds very much like something another S5-ian would have said



Miss y'all. (x 5.)