The etiquette around "let's grab lunch" can vary depending on the context, cultural norms, and the relationship between the individuals involved. Here are some general guidelines:
Initiator Pays: In many Western cultures, if someone initiates the invitation with a phrase like "let's grab lunch," it is often understood that the person extending the invitation will be paying for the meal. This is considered a gesture of hospitality and friendliness.
Offer to Split: Sometimes, the person who was invited may offer to split the bill, especially if they are close friends or colleagues. In such cases, the initiator can either accept the offer to split or may insist on paying the entire bill if they genuinely want to treat the other person.
Alternate Treats: In certain social or professional relationships, it's not uncommon for people to take turns treating each other to meals. This way, the expenses are shared over time, and both parties get a chance to be hospitable.
Consider the Context: If the lunch invitation is more of a casual get-together among friends or peers, splitting the bill or taking turns to treat each other is generally more acceptable. However, if it's a business meeting or a formal occasion, the person who extended the invitation might be expected to pay.
Discuss It: If you're uncertain about who should pay, it's perfectly fine to openly communicate about it. You can simply ask, "Are we splitting the bill, or would you like me to get this?" This ensures that both parties are comfortable with the arrangement.
Be Gracious: If you are the one being treated to lunch, be gracious and appreciative of the gesture, regardless of who pays. A simple thank you goes a long way in showing your gratitude.
It's important to note that customs and expectations can vary significantly across cultures and individual preferences. What might be customary in one place may not be in another. Therefore, being sensitive to the cultural norms and the specific relationship between the individuals involved is essential. If you're unsure, observe what others do in similar situations or ask someone familiar with the local customs for guidance.