Missed first base and then tagged

[johnnyg08]

Since this was a force play...mechanically speaking, the umpire must signal safe though...we can't be tipping off the defense with a no call...since it's a force either he's safe or out...now is it proper mechanics to signal "safe" and verbalize "no tag"...or is the safe signal followed by an appeal the proper way to handle this? I really think this is more of a mechanics question versus a rule question...and yes, it would be nice to have a video clip...