Coffee can help you connect to people and win someone's trust.
“That sounds weird, how is that supposed to work?" you might think, but it truly can help you to make your prospect feel comfortable around you and perceive you as more trustworthy.
If someone gives you a cup of icy cold water to hold, then introduces you to a stranger, you'll treat this newcomer with suspicion and rate them as colder and more distant on personality scales. But if they give you a cup of hot coffee and make the same introduction, trust comes more easily.
The act of feeling physical warmth is enough to trigger cognitive changes: you literally warm up to people, no thinking required. Our body signals our brain that the environment is comfortable, you can relax and be open. Your will automatically feel more trusting towards others.
So next time you see your prospects, meet and greet them with a hot drink!