🔮 Seek the meaning of it: The Psychology of UX Design

When users try to give sense to information, they make stories and assumptions to fill the gaps.

No. Name One-Liner Category
1 👥 Social Proof Users adapt their behaviors based on what others do Meaning
2 🦄 Scarcity People value things more when they're in limited supply Meaning
3 💭 Curiosity Gap Users have a desire to seek out missing information Meaning
4 🖲 Mental Model Users have a preconceived opinion of how things work Meaning
5 🌟 Familiarity Bias People prefer familiar experiences Meaning
6 ⚖️ Flexibility Tradeoffs People often overestimate how much flexibility they can have without sacrificing consistency or efficiency Meaning
7 👼 Halo Effect People judge things (or people) based on their feelings towards one trait Meaning
8 ☎️ Miller's Law Users can only keep 7±2 items in their working memory Meaning
9 🍱 Unit Bias One unit of something feels like the optimal amount Meaning
10 🕹 Skeuomorphism Users adapt more easily to things that look like real-world objects Meaning
11 🤝 Singularity Effect Users care disproportionately about an individual as compared to a group Meaning
12 🎁 Reciprocity People feel the need to reciprocate when they receive something Meaning
13 👑 Authority Bias Users attribute more importance to the opinion of an authority figure Meaning
14 🏺 Pseudo-Set Framing Tasks that are part of a group are more tempting to complete Meaning
15 🎰 Variable Reward People especially enjoy unexpected rewards Meaning
16 🎊 Group Attractiveness Effect Individual items seem more attractive when presented in a group Meaning
17 🚰 Curse of Knowledge Not realizing that people don't have the same level of knowledge Meaning
18 🎉 Aha! moment When new users first realize the value of your product Meaning
19 📮 Self-Initiated Triggers Users are more likely to interact with prompts they setup for themselves Meaning
20 ✏️ Survey Bias Users tend to skew survey answers towards what's socially acceptable Meaning
21 🎭 Cognitive Dissonance It's painful to hold two opposing ideas in our mind Meaning
22 🥅 Goal Gradient Effect Motivation increases as users get closer to their goal Meaning
23 💫 Feedforward When users know what to expect before they take action Meaning
24 🪒 Occam's Razor Simple solutions are often better than the more complex ones Meaning
25 🎗 Noble Edge Effect Users tend to prefer socially responsible companies Meaning
26 🧿 Hawthorne Effect Users change their behavior when they know they are being observed Meaning
27 🏒 Hindsight Bias People overestimate their ability to predict outcomes after the fact Meaning
28 🎏 Law of Similarity Users perceive a relationship between elements that look similar Meaning
29 🌓 Law of Prägnanz Users interpret ambiguous images in a simpler and more complete form Meaning
30 🐘 Streisand Effect When trying to censor information ends up increasing awareness of that information Meaning
31 🔦 Spotlight Effect People tend to believe they are being noticed more than they really are Meaning
32 🌊 Flow State Being fully immersed and focused on a task Meaning
33 👁️ Mere Exposure Effect Repeated exposure to something makes users more likely to develop a preference for it Meaning

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Last updated: 2026-10-20

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