-im happy
X) or XD-u did/said something tht made me happy (or i like u)
:3-i never make tht face so it meanz nothing
;D or -usually meanz i like u
;( or D; or :'( -is a tear face which means im sad
- means i love u! either as a friend or as more than a friend
nvm- can mean tht i want u 2 ask about it or tht i dont want to explain something
haha- u said something funny and im laughing
hehe or hm hm- flirtaious laugh