UwU
U-U (disappointed or tired)
UcU (kissing)
-0- (yawn or sleep)
-o- (smaller yawn or sleep)
-u- (happy smilie)
u-u (disappointed)
-c- (kissing)
0-o
o-o
o_o
0-0
0_o
(all with round eyes are surprised or embarrassed)
0///0 blushing
-///- blushing