In many cases, a simple "Hello"is a perfect way to greet someone intheUS.“Hi”is also a suitable greeting. Both are typically said with a smile ora nod of the head.If you make eye contact with someone within speakingdistance, it works as saying"Helo”or“Hi”Aless formal greeting is" Hey”,though it should not be used formal social settings. Besides, when somepeople in the US say"How’s it going? " they’re most likely just saying"Hi",and not in fact asking you to go into detail about your day. You can answer,”Good, and you? "or"Good, and how about yourself? "Other variations of thisgreeting include""How are you? "and"How are you doing?