| No. | Item | Definition |
|---|---|---|
| 1. | association | a connection or involvement |
| 2. | audience engagement | active audience involvement |
| 3. | back-and-forth | repeated mutual exchange |
| 4. | business dealings | commercial relations or transactions |
| 5. | coaction | acting together or jointly |
| 6. | collaboration | working together with others |
| 7. | communication | sharing information with others |
| 8. | conference | formal meeting for discussion |
| 9. | connection | a link or relationship |
| 10. | consultation | discussion to seek advice |
| 11. | contact | direct communication or connection |
| 12. | conversation | spoken exchange of ideas |
| 13. | cooperation | working jointly toward something |
| 14. | coordination | organized working together |
| 15. | correspondence | communication by letters or messages |
| 16. | cross-talk | informal exchange between sides |
| 17. | data exchange | mutual transfer of data |
| 18. | dealings | relations or transactions with others |
| 19. | dialogue | conversation between two sides |
| 20. | diplomatic contact | official communication between states |
| 21. | direct contact | immediate communication or connection |
| 22. | discourse | serious communication or discussion |
| 23. | discussion | talking about something together |
| 24. | dynamic exchange | active mutual sharing |
| 25. | encounter | a meeting or contact |
| 26. | engagement | active involvement with others |
| 27. | exchange | giving and receiving between parties |
| 28. | face time | direct personal interaction time |
| 29. | feedback loop | cyclical mutual response |
| 30. | give-and-take | mutual exchange and compromise |
| 31. | group discussion | discussion among several people |
| 32. | human exchange | communication between people |
| 33. | information exchange | sharing information mutually |
| 34. | interactivity | quality of responsive exchange |
| 35. | interchange | exchange of ideas or actions |
| 36. | intercommunication | mutual communication between parties |
| 37. | interconnection | mutual linking or connection |
| 38. | intercourse | communication or dealings |
| 39. | interface | a point of mutual contact |
| 40. | interplay | mutual influence or action |
| 41. | interrelation | mutual relationship between things |
| 42. | interworking | working together or jointly |
| 43. | involvement | active participation with others |
| 44. | joint action | action done together |
| 45. | joint communication | communication done together |
| 46. | joint operation | operation carried out together |
| 47. | joint participation | taking part together |
| 48. | liaison | close communication or cooperation |
| 49. | machine communication | communication between devices |
| 50. | meeting | coming together for discussion |
| 51. | mutual action | action affecting each other |
| 52. | mutual communication | two-way communication |
| 53. | mutual contact | contact between both sides |
| 54. | mutual dealing | two-way dealing or exchange |
| 55. | mutual engagement | active involvement by both sides |
| 56. | mutual exchange | two-way giving and receiving |
| 57. | mutual influence | effect each has on another |
| 58. | mutual response | response between both sides |
| 59. | negotiation | discussion to reach agreement |
| 60. | networking | building professional connections |
| 61. | official dealings | formal relations or transactions |
| 62. | one-on-one | direct exchange between two people |
| 63. | parley | conference or discussion |
| 64. | participation | taking part with others |
| 65. | partnering | working together as partners |
| 66. | peer contact | contact with colleagues or equals |
| 67. | peer exchange | mutual sharing among equals |
| 68. | personal contact | direct communication with someone |
| 69. | personal dealings | private relations with others |
| 70. | public engagement | active involvement with the public |
| 71. | rapport | harmonious mutual understanding |
| 72. | reaction | response to another action |
| 73. | reader engagement | active reader involvement |
| 74. | reciprocal action | action affecting both sides |
| 75. | reciprocal exchange | mutual giving and receiving |
| 76. | reciprocity | mutual exchange or response |
| 77. | relations | connections between people or groups |
| 78. | relationship | way people connect or deal |
| 79. | social contact | contact with other people |
| 80. | social dealing | social relations with others |
| 81. | social engagement | involvement with other people |
| 82. | social exchange | interpersonal giving and receiving |
| 83. | social intercourse | communication among people |
| 84. | social interplay | mutual social influence or action |
| 85. | social relations | connections among people |
| 86. | stakeholder engagement | active stakeholder involvement |
| 87. | system contact | contact between systems |
| 88. | system exchange | exchange between systems |
| 89. | talk | spoken communication |
| 90. | touchpoint | point of contact or exchange |
| 91. | transaction | an exchange between parties |
| 92. | transactional contact | practical exchange between parties |
| 93. | transactional exchange | practical mutual exchange |
| 94. | two-way communication | communication in both directions |
| 95. | user contact | contact between user and system |
| 96. | user response | reaction from a user |
| 97. | user-system exchange | exchange between user and system |
| 98. | verbal exchange | spoken communication between sides |
| 99. | viewer engagement | active viewer involvement |
| 100. | working relationship | professional connection and exchange |