Which is the most absurd reason for thinking someone may like them/be into them?

These are legit reasons why people have thought this, not me though

Thinking someone may like them because they respond to you with Thank you so much, or Thank you that's so nice of you instead of regular Thanks or Thank you

Thinking a stranger may be into them because they held the door open for them

Thinking someone may be into them because they complimented them a couple of times

Thinking someone may be into them because they respond to their Snapchat story sometimes

Thinking someone may be into them because they smiled at them

The first one
The second one
The third one
The fourth one
The fifth one
I don't think any of these are all that absurd, some are stretches, and some don't seem too far off
All of them are equally as absurd
Select gender and age to cast your vote:
Which is the most absurd reason for thinking someone may like them/be into them?
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