conversation between boy n girl

i just wondering..why when somebody want to start a conversation they gonna start with english words..like"hye..i'm sulaiman..how are u..nice to meet u n bla bla bla"pffft..what the...can't u start with.."Assalamualaikum..i didn't say using a english word is wrong...but its happened frequently..this thing usually happened to the boys..they want every girl respect them as a perfect person with that english words even do he only know that words...using a english word is very very n very good but with the correct ways..using a english word doesn't mean to show off or boast that we are really smart speaking english..we can't show off with what Allah gave to us..that's of the negative views..with the positive views..we can say they want to improve their english..only the conversation they can improve their english because they have nobody..like me..all the things have the good views n a bad views..same like humans..no one is perfect..<3