Is it correct and natural? A guy walked up to me earlier today, he was trying too hard to sell me some cosmetic products that he said to me: Oh, I thought you've just graduated from high school. and I was like: .... 

How to say this in Korean? (On phone conversation)  Would you mind if I call you back in an hour? (very formal)

which in below do you think is more popular in general? Rapping or Street dancing both of them are related to Hip Hop music, but which do you think is more popular for people who dont know any of those. Let's say if you are a person who does't dance or rap, as an audience, do you enjoy watching a rapping performance (Rich Brian, Kendrick, Post Malone) or a hip hop dancing performance?

Is it natural ? Is the below correct and natural? Do you even understand what I say?

I am lazy enough to bring a gym suit to change,(so) i just wear my sport bra to work.