Group 1 - The article discusses the phenomenon of "typing..." in chat applications, indicating that the other person is engaged in the conversation and values the interaction [11][17][48] - It explains the conditions under which "typing..." appears, such as when the other person opens the chat and starts typing within 10 seconds [18][22] - The article differentiates between continuous and intermittent typing indicators, suggesting that intermittent typing may indicate hesitation or indecision from the other party [26][29] Group 2 - Strategies to avoid showing "typing..." include waiting over 10 seconds to respond, using emojis, typing in the input method without sending, or disconnecting the internet while typing [51][55][63] - The article also provides insights on privacy settings in WeChat, explaining the differences between "only chat," "not letting them see," and "adding to blacklist" [75][79]