I think good manners are important. Please and thank you. Excuse me and sorry.
Are manners important to you? Are you polite?
I'm the kind of person who apologises when people bump into me.
I wouldn't dream of going into someone's home without asking if I should take my shoes off or not.
I always hold the door open for people... Even if they're still quite far away, so I'm just stood there holding the door for them for like 10-15 seconds.