At the same time It affects a lot, in the way we speak as far as "slang" some words may have different meaning for different cultures. Some of the things we do may also have different meanings. So we may offend somebody from a different culture by saying something that is not offensive to us.
My culture influences my verbal and nonverbal behaviors accurately read other people, including the emotions they’re feeling and the unspoken messages they’re sending. Create trust and transparency in relationships by sending nonverbal signals that match up with your words. Respond with nonverbal cues that show others that you understand, notice, and care.