the meaning of ' i am going to put on my geek hat'

[Koalachan]

hi im not sure the meaning of the below:

''i'm going to put on my geek hat to.............''

thanks a lot!

[Mister Micawber]

.
I am going to use my knowledge of computers (or whatever other specialized field is being discusses).
.
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Native English teacher at Mister Micawber's