1. Mistake monitor
I try to spot my teachers' mistakes during lessons. This helps me focus on what they're saying, and it's fun when I notice the slip-ups they make.
Harry Cheng, 17
2. Crazy colours
I take notes using pens of different colours. I'm decorating my new notebook and studying at the same time!
Kelsi Lo, 13
3. Spice it up
I stay awake by eating sour candies and wasabi!
Ruby Leung, 16
4. Big brekkie
I enjoy a big breakfast before school. This provides me with enough energy for the rest of the day.
Janet Choi, 17
5. Sneaky squats
When the teacher's back is turned, I get up and do a few quick squats to get my blood rushing through my veins. It's exhilarating (if somewhat embarrassing)!
Jade Lam, 16
6. Caffeine kick
A classic coffee always works for me. Caffeine is a stimulant that helps to keep you awake and energised!
Rajinder Deol, 16
I fidget. It doesn't matter if I'm playing around with some Blu-tack or tapping my fingers on the table to the beat of my favourite song. Fidgeting always keeps me awake and makes me more focused. The only problem is it's extremely distracting for my friends around me!
Hua Yuk-ting, 14
8. Poke to perk up
To stay focused in class, I usually poke myself. Actually, tickling myself also works as well, although it's hard to suppress the laughs!
Odessa Fung, 13
9. A simple sweet
I like to give myself a little treat. Sugar is a magical thing that keeps everyone awake and energetic. I'll have a sweet or two before class to keep myself awake and focused. Sugar also makes me happy, which helps me stay positive during lessons.
Leanne Lam, 16
10. Going grey
I like to count how many wisps of grey hair my teachers have. This helps me stay focused on the teacher (well, their hair anyway!), plus it makes me look like a good student who is concentrating well in class.
Heidi Kwan, 16
Coming Tuesday, September 10, is Teacher's Day in Hong Kong. Tell us the most important think you've learned from your teacher. For our next Top 10, tell us what you would do to stay awake and concentrate in class. Send your response, together with your name, age and school, to email@example.com with "Top 10: Teacher's Day" in the subject field