In essence, it's about being professional and taking care, which means don't: agree to meet alone; allow over-familiarity; give out your personal mobile number; meet informally outside working hours and away from your organisation's premises (and certainly don't do so without getting formal approval); allow too frequent contact or over familiarity that may be acceptable with friends, colleagues and family but not from people with whom you only have a commercial relationship; discuss your private life, or social or recreational interests of you or your partner; accept offers, discounts or other services or products by the client, customer or contractor; accept
hospitality or gifts that you yourself wouldn't pay
for from your own pocket; and don't do anything that makes you feel uncomfortable, obligated or might be open to misinterpretation or might be
difficult to explain to your manager, a journalist or an investigator.