In this instance, it doesn’t quite merit a honking of the horn, but you’re livid and nearby motorists need to be aware of it. They will likely give an ‘OMG THANK YOU’ wave back. Essentially, you’re telling pedestrians that they can traverse the road safely at your beckon. Ultimately, it ends up looking very inelegant. This is the most awkward of all the drivers’ hand signals as you’re unsure what way to position your hand over the steering wheel.