by putting them into jars, this will help to pull out whatever moisture is left in the buds and should help to remoisten the buds.. you can always put a piece of fresh leaf or say an orange or apple peel in the jar with the buds for a few hours to help further.. you have to be carefull when adding anything as it can bring back too much moisture and end up causing mold issues.
most people say that they let the buds dry till the stem snaps instead of bends, but i find this to be a lil on the dry side for my tastes.. i don't let them go as long before i put them into jars, and when i do put them into the jars, for the first day or so i just leave the lid off for the first day or so, than open it several times a day and even dump the buds out once a day to rearrange them some..