The person below me

[Banya]

False.

TPBM watch all three LOTR movies in a row in the recent past.

[Søren]

No.
TPBM had a sandwich for lunch.

[Jukka the Sling]

True.

TPBM doesn't really know how to swim. (Like, I taught myself to swim, but very poorly, and it takes me forever to get anywhere. So, I wouldn't call myself a swimmer.)

[Banya]

False.  I wouldn't say I'm great at it, but I do have a lifeguard certificate.

TPBM is currently at home.

[Luftwaffles]

True.

The person below me has had lunch already.

[Banya]

True-ish.  It was brunch.

TPBM is feeling kind of hungry.

[Mhera]

I'm always hungry. (Not really, but it seems like it.)

TPBM likes decorating cakes.

[rrrrr]

True.

The Person Below Me likes science.

[Banya]

True, but I'm not studying it, so I don't get to take many classes in that field.
(Unless you count the social sciences.)

TPBM is usually up past midnight.

[Luftwaffles]

Only at midnight now.

The person below me has broken his/her mouse out sheer of frustration.

[Banya]

False. 

TPBM uses a laptop so uses a touchpad, not a mouse.

[Søren]

Yes, and I use a desktop with a trackpad.
TPBM uses mostly an iPad.

[Luftwaffles]

True, but it's a direct result of the question posted above.

The person below me enjoys 80's music.

[Søren]

Yes, some of it.
TPBM likes to hear remixes of their favorite songs.

[Banya]

False.  I find remixes annoying, generally.

TPBM hasn't eaten yet today.