Walking out of order is considered inconsiderate when crowded. Walking in a improper way could cause you to bump into another citizen. Texting and walking could cause misdirection on the sidewalk. Don't stop abruptly could cause someone to fall. Cutting in front of someone will lead to someone to trip. Going into a crowded elevator could discomfort for other people. Trying to fit into a crowded place can trapped some people who wanna step off. Fitting into a crowd can cause a malfunction on a elevator. If forcing yourself into a elevator someone can fall into crowded place. When using a speakerphone in public can make people irritated. Having someone on speakerphone makes other citizens noisy. Speakerphone on people will tell you to talk normally
