NCAA - signals/mechanics

[Zoochy]

I notice officials at high school games DO NOT always use the NFHS signals/mechanics.
They DO NOT raise the hand to stop the clock when the ball goes Out-of-Bounds. They just point. They tend to just give signals w/o raising hand on other violations too.
Similar on Player/Team Control Fouls, they just point.
On administrating Throw-ins, they just do a shoulder height count.
There are other differences, but they escape my brain right now.
Is this just on the women side or also on the men side?