The document discusses different types of social interactions: one-on-one, many-on-one, one-on-many, and many-on-many. It also describes principles of social interaction including reciprocity, where people feel an obligation to repay favors; persuasion techniques like reciprocal concession where a smaller request is more likely to be accepted after a larger denial; and the bystander effect where people are less likely to help in emergencies when others are present due to diffusion of responsibility.

1. Social Interaction
From the book: Psychology by Henry Gleitman
Part three, chapter 12

2. Introduction - Who’s talking?
• Matthijs Roumen, 21, from The Netherlands
• Student Communication & Multimedia Design
• Erasmus student at Anadolu University from sept. 07 untill feb. 08.

3. Social Interaction - different kind of interactions
• One-on-one interaction
• Many-on-one interaction
• One-on-many interaction
• Many-on-many interaction

4. Social Interaction - different kind of interactions
• One-on-one interaction (normal conversation)
• Many-on-one interaction (influence from many-on-one)
• One-on-many interaction (leadership)
• Many-on-many interaction (demonstration)

5. Social Interaction - different kind of interactions
• One-on-one interaction

6. Social Interaction - one-on-one interaction
• The way people deal with others is social exchange.
• It’s about giving and taking.
• Also called the reciprocity principle.
• A favor for a favor, a gift for a gift, a smile for a smile.

7. Social Interaction - reciprocity & persuasion
• The feeling to repay.
• Manipulated to say yes (Hare Krishna Society example).

8. Social Interaction - reciprocal-consession effect
• Second offer is smaller then first offer.
• Example: request unpaid volunteer for 2 years.
• Example: request to accompany boys or girls from juvenile detention center
to a 2 hour zoo trip, once.
• 50% agreed with second offer after first. 17% agreed with second offer
without offer 1.
• Door-in-the-face technique.

9. Social Interaction - The bystander effect
• Large group, less action.
• Individuals act faster.
• but why?!

10. Social Interaction - The bystander effect
• Ambiguity: People don’t know exactly what’s going on.
• Pluralistic ignorance: See that others don’t act. Thinking everything is ok.
• Leads to a diffusion of responsibility.
• Example: Kitty Genovese tragedy, 1964, New York.

11. Social Interaction - The bystander effect

12. Questions?
• Slides on http://turkije.mroumen.com and http://log.mroumen.com