look young vs look matured

hmm...some ppl juz love to look mature, but me, only at times. coz most of the time i prefer to look young! but there're situations when u feel awkward or dunno how to even react. e.g.
-- going out with a friend your same age, then a person daringly said that your friend looks like 25yr-old, and kept calling you 小妹妹, how's that feeling?
-- out with a fren whom ppl said is your brother. even with real siblings ppl seldom said we look alike. one said i'm his older sister, one said i'm his younger sister. so???
-- ppl guessing your age, like dun dare to guess. there's one experience a woman ask her kids to call me "aunty-che che". (coz i was with my colleague and they're 40+) omigosh. please la. can't forget that.

well, well, whatever. most importantly, be happy. and feel young :)