wave down

She testified that she attempted to wave down the vehicles by stepping off the curb into the bike lane but was unsuccessful.

If you send a wave down a forked channel, it will easily split and flow through both channels at the same time.

Witnesses told the Florida Highway Patrol that Haskins was trying to wave down cars and standing in the center lane when he was hit by the truck and then an SUV.

Webster and Burckle eventually made it to shore, where they wrote “SOS” and “help” in the sand and attempted to wave down a passing boat, to no avail.

Surfing that wave down steep hills, over rocks and around sharp corners definitely tests balance and flow — or lack thereof.