Some soldiers used a certain number of fingers to describe how many. they would make a flat hand and point it to show in what direction. and others like putting a flat hand upwards to tell them to hold their position or fire. You can probably find more on the DISCOVERY or HISTORY channels.
Navy SignalsThere wasn't much need for hand signals in the Navy. Signalman used semaphore flags to send messages back a forth between ships, along with flashing light signals.Turn signals are definitely preferred. Most drivers don't look for hand signals, but, they do look for turn signals. Some people don't even know how to make correct hand signals while driving.
The risk is extremely low. The RN has some of the best equipment in the world and you tend not to end up in hand-to-hand combat which is the dangerous bit. So nothing much to worry about.
Common hand signals used by musicians during performances include signals for starting or stopping, indicating tempo changes, signaling for repeats, and communicating dynamics or volume adjustments.
Something that was in the Navy cannot just go straight into the SWAT. You will have to take some to training and class before hand.
Some good secret signals that can be used to communicate discreetly include hand signals, specific phrases or code words, subtle gestures, and non-verbal cues such as eye contact or body language. These signals can help convey messages without drawing attention from others.
Some southerners felt the ships would be used to protect the trade of New England, but do little for southern economies. Some members of Congress thought a navy would be a foolish challenge to the world's mightiest navy.
Out, In, Touch, Serve, To many hits, Illegal Hit, Player in the net/touched the net, Hit the floor, and there some others but those are the main ones!
maybe it means that he likes you and he's sending some signals
No, it isn't absolutely, although doing so in a dangerous way could be penalised for 'careless use of a motor vehicle' or some such crime. Hand signals are perfectly legal, and even recommended if your indicators have failed or are otherwise obscured.
The Navy today has some 330,000 Men and Women and some 243 ships spread all over the world and through several Fleets such as the 7th in Japan or the Sixth Fleet in the mediterranean sea just as some examples
The hand signal for "hostage" is the following: 1) Put your thumb and index finger in a "finger pistol" formation. 2) Place your index finger and your thumb on the edges of your jaw. For an advanced directory of some hand signals used by police and military personnel, see the Related Link I've added below.
all of them-some of them...WAY to many to count