Quote by Sir Alec Guinness
A person who is keen to shake your hand usually has something up his sleeve.
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Summary
This quote suggests that when someone is overly eager or quick to greet you, it could indicate that they have an ulterior motive or hidden agenda. It implies that a person who appears friendly and open may actually be deceitful or manipulative, using their charm as a cover for their true intentions. The quote serves as a reminder to be cautious and skeptical of people who immediately extend a welcoming hand, and to remain vigilant about the possibility of hidden motives in interpersonal interactions.