You should be respectful of people around you.
Sebastian is studying at a desk in the library when his phone starts to ring.
Sebastian wants to answer the phone.
Sebastian puts the phone on silent, goes outside, and talks with his friend.
Sebastian picks up the phone at the desk and starts to talk with his friend.
Sebastian is able to talk with his friends, and the other library patrons are able to study in peace.
Other library patrons glare at Sebastian, and Sebastian is asked to leave.