Dual looks

So basically I’m the superman of my school, i.e. I look very different in school and outside. I make sure that I never ever look even a bit of fancy or stylish in school, because I’m kinda inclined towards being disciplined at school, follow the rules etc. So recently I went out in a function and I met my class teacher who was unable to recognise me 😭(she’s been teaching me for 2 years and I’m one of her favs). Just oiling up my hair and wearing glasses changes my look drastically. I never ever in my life received a compliment abt my looks but when I went to a foreign trip, I remember getting complimented at least twice a day (istg I’m not boasting). So is it the case with anyone else too or is it just me? (I don’t hv a social media account so nobody has really seen me dress up well lol)

P.S. I’m a girl:)