A cheerful face may humanize a tough message in some startups yet seem flippant to senior officials or regulated industries. Hand gestures translate poorly: the OK sign offends in places; folded hands can soothe elsewhere. Prefer neutral emojis sparingly, match your counterpart's style, and escalate warmth gradually through rapport.
Self-deprecating lines can build closeness in English-speaking teams but might appear weak elsewhere. Sarcasm often backfires in text, especially across languages. Avoid politics, religion, or history. When unsure, test with a trusted colleague privately. Humor should never punch down; use shared challenges, delightful surprises, or harmless puns instead.
ALL CAPS reads like shouting, repeated exclamation points sound frantic, and ellipses suggest doubt or disappointment. Replace aggressive emphasis with structure: short paragraphs, numbered steps, and bold keywords where tools allow. Use one exclamation sparingly for genuine enthusiasm. When tone matters, add a sentence naming intent: clarity, care, or urgency.