Soak your undies first. Then freeze it for an hour. Put it on and keep it on until it thaws.
soak your underwear in water then stick it in the freezer for 4 hours, then wearing only that pair of undies go outside and run around like an idiot.
Soak ur undewear in water and put it in the freezer for awhile. Then take a picture with only Frozen Underwear on!!!
take wet underware in the fridge and wear it after some time