1. Sound
1.1. Traffic
1.1.1. Horns
1.1.2. Traffic lights
1.1.3. Trams (bell sound)
1.2. Talking
1.2.1. Cell phone
1.2.2. Friends
1.2.2.1. Teenagers
1.2.2.1.1. Laugh / Jokes
1.2.2.1.2. Catch up
1.2.2.1.3. Discussion about school life
1.2.2.2. Overseas maids / domestic workers
1.2.2.2.1. High pitch
1.2.2.2.2. Speak fast
1.2.2.2.3. Immerse with laugh
1.2.2.2.4. Sing
1.2.2.2.5. Chit-chat
1.2.2.3. Middle-aged
1.2.2.3.1. Ladies
1.2.3. Family members
1.2.3.1. Giggles
1.2.3.2. Greetings
1.2.4. Tourists
1.2.4.1. From Mainland China
1.2.4.2. Foreigners
1.2.4.2.1. Multiple languages
1.2.5. Couple
2. Smell
2.1. Dust
2.1.1. Traffic
2.2. People
2.2.1. Sweat
2.2.2. Purfume
2.2.3. Food
2.3. Weather
2.3.1. Humid
2.3.2. Air isn't flowing / Stuffy
2.4. Nothing natural
3. Sense / Feeling
3.1. Crowded
3.1.1. Attitude:Pushy
3.1.1.1. Egocentric
3.1.1.2. Lack of courtesy
3.1.1.2.1. Creating distance in relationship
3.1.1.3. Emotional management
3.1.1.3.1. Personal space
3.1.1.3.2. Self-understanding
3.1.1.3.3. Self-care
3.1.1.3.4. Recognition of emotions and the relationship with particular event(s)
3.1.2. Behavior: Hurry
3.1.2.1. Talk fast
3.1.2.2. Walk fast
3.1.2.3. React fast
3.1.3. Too much stimulation
3.1.3.1. Advertisement
3.1.3.2. People
3.1.3.2.1. Chatting
3.1.3.2.2. Hanging around
3.1.3.2.3. Using cell / tablets
3.1.3.2.4. Taking care of children / elderly
3.1.3.3. Magazine / Newspaper Stand
3.1.3.4. Shops / Restaurants
3.1.3.4.1. Ground level
3.1.3.4.2. Multiple stories
3.2. Happiness
3.2.1. Gathering
3.2.1.1. Family
3.2.1.1.1. Filial piety
3.2.1.1.2. Degree of sincerity?!
3.2.1.2. Friends
3.2.1.2.1. Hierarchy
3.2.1.2.2. Stereotype
3.2.1.3. Community
3.2.1.3.1. Community events
3.2.1.3.2. Charity events
3.2.2. Shopping