Should you speak to adults like you speak to your friends?

It depends on who the adult is and what your relationship with said adult is. If they're for example a teacher, doctor, or stranger then no you treat them with more respect and you should be more formal. If it's a parent or a family friend then it's ok to be a little looser.

glitch or non-saved account.

explanation:

i'm not personally a mobile user but one reason could be that it is either a glitch where it doesn't automatically log you in, or you have it so cant save your log-in information. i suggest you use the mobile app instead of using your web browser!

yes the first one is correct .