How to individually watch threads?

like i posted this tag list thread , and I want notifications to come in case anyone tells me to add them, how to watch individual threads on tablet/android

Quote from TPHF

It's that little bookmark icon underneath the search icon :)

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its not visible for me in dark mode , I mean there is no icon there

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this is how it looks for me

Quote from TPHF

Ah, you're on mobile. Then do this: Go to the menu upper left and click manage subscription. That should do it.

thanksss