Safest place to be is... somewhere else
Since that's not an option, what I do is this: Left hand on fuse behind engine, right hand in front with chicken stick or starter (Tail being held by a holder - either mechanical or [preferably] carbon-based life form)
Once engine is running, use left hand (Which is already behind the prop) to remove glow clip.
And ALWAYS remember that there is a hungry prop there waiting to eat ANYTHING (Fingers, transmitter antenna, shirt tail etc)
Next - and probably every bit as important... Once the engine is running, get BEHIND the prop arc before running the engine up! If anything goes wrong, large nasty sharp things can fly out or forward, rarely will they go toward the rear.
There was a case about a year ago right here at RCU where a guy was standing in front of his giant scale gasser. When he opened the throttle, the firewall broke loose. That man posted here to tell us that he will not be flying anymore, because he has no fingers left and both of his hands were mutilated for life.
So I will say it again...
GET BEHIND THE ENGINE!!!
And get all spectators and close pilots back there too!