20s
addict
addiction
addictive
asian
cell phone
china
chinese
east asia
friends
game
ground
hong kong
hongkonger
japan
japanese
korea
korean
looking
male
man
millennial generation
mobile phone
oriental
outdoor activity
person
phubber
phubbing
playing
receiving
sending
singapore
singaporean
sitting
smartphone
social media
taiwan
taiwanese
text message
texting
three people
using
young adult
youth culture