Howcast - Learn how to win a bet that you can balance a quarter on a dollar bill with this Howcast video.

Howcast - Head trauma can lead to death or brain injuries that can affect your memory, judgment, reflexes, speech, balance, and coordination. Check out these tips on how to prevent concussions.

Howcast - Learn how to set your hand in pai gow in this Howcast video about gambling.

Howcast - Learn how to swim feet first in this online swimming lesson from Howcast.

Howcast - Learn how to do the corkscrew stroke in this online swimming lesson from Howcast.

Howcast - Tennis pros Joe Perez and Kirk Moritz explain the analogous tennis teaching method in this Howcast video.

Howcast - Learn the five fundamentals of indoor rock climbing from climbing expert Cliff Simanski in this Howcast video.

Howcast - Learn how to walk a motorcycle from professional motorcycle instructor Joonil Park in this Howcast video.

Howcast - Learn how to do a feeble to 180 on a BMX from expert Francisco ColÃ_n in this Howcast video.

Howcast - Learn how to do a wheelie on a BMX from expert Francisco Colón in this Howcast video.

Howcast - Learn how to bunny hop into a manual on a BMX from expert Francisco Colón in this Howcast video.

Howcast - Learn how to do an overhead lunge from Warrior Fitness Boot Camp creators Ruben Belliard and Alex Fell in this Howcast workout video.

Howcast - Learn how to dunk a basketball with two hands from former top-ranking college basketball player Jason Curry in this Howcast video.

Howcast - Learn how to avoid rollerblading accidents from former World Champion speed skater Gypsy Lucas in this Howcast video.

Howcast - Learn how to freestyle on rollerblades from former World Champion speed skater Gypsy Lucas in this Howcast video.

Howcast - Learn how to do a heel toe on roller skates from former World Champion speed skater Gypsy Lucas in this Howcast video.

Howcast - Learn two quad roller-skating tricks from former World Champion speed skater Gypsy Lucas in this Howcast video.

Howcast - Learn three tips on how to skate fast on roller skates from former World Champion speed skater Gypsy Lucas in this Howcast video.

Howcast - Learn four roller-skating tips for beginners from former World Champion speed skater Gypsy Lucas in this Howcast video.

Howcast - Learn how to do a core exercise that will improve your soccer fitness from Coach Frank Hauser in this Howcast soccer video.

Howcast - Learn how to improve your footwork from former PBA touring player Mike D'Ambrosio in this Howcast bowling video.

Howcast - Learn what it takes to be a good bowler from former PBA touring player Mike D'Ambrosio in this Howcast bowling video.

Howcast - Learn how to paint walls using paintbrushes and paint rollers from Brushed Interiors founder David Sartori in this Howcast video.

Howcast - Learn how to stop smoothly on roller skates from former World Champion speed skater Gypsy Lucas in this Howcast video.