I never learned how to...

[Victor]

"in addition: i dont know how to sneeze properly, i always hold my sneezes in,"

wow you have missed out a lot dude.

[gamblore99]

whistle
snap my fingers
ride a bike with no hands
skate/rollerblade
drive manual
proper dinner etiquitte
parallel park
skateboard
handstand

and tons more. Not being able to do these little things used to bother me a lot.

[pokerraja]

how to play chess.

[AvivaSimplex]

Also, how to solve partial differential equations.

[Vivalution]

Blow O's with smoke.

And now that I don't smoke I never will...

[kickabuck]

[ QUOTE ]
I never learned how to tie my shoes the way that most people do ( http://www.fieggen.com/shoelace/standardknot.htm ). I mean, I know how to do it, but I've never used it enough to get really quick at it. I've always used the bunny ear method ( http://www.fieggen.com/shoelace/twoloopknot.htm ).

[/ QUOTE ]

And I thought I was alone. Actually I only know how to use the bunny ear method exclusively. Used to be pretty embarassing on the court playing basketball in high school with the crowd watching me tie my damn shoes like a five year old. Years later a kid who had just learned how to tie their shoes successfully taught me, alas I quickly forgot. A strange mental block for me.

[JayTee]

ski
do a proper flip or cartwheel
walk on my hands
swim good
punch a guy
not come off as a condescending prick to most people

[The X-Factor]

I never learned to ski or whistle and this is all I can remember at the moment.

[Dakotasdad]

Play poker well.

[limitedslip]

[ QUOTE ]
Also, how to solve partial differential equations.

[/ QUOTE ]

Me too, it was the last math class I had to take, and I just couldn't get into it. Somehow passed the second time though.