roll

to move on wheels.

flap

to move up and down.

swap

to give one thing in return for something else.

shuffle

to mix things up to change their order.

fade

to disappear slowly.

wait

to stay in a place or delay doing something until a certain event happens.

avoid

to keep away from something

crumble

break or fall apart into small fragments, especially over a period of time as part of a process of deterioration

drip

to fall slowly, drop by drop.