My personal right lane behavior:   
      
   #1.  If I am approaching onramp(one-quarter to one-eighth mile before it)  and   
   vehicle is ahead of me in said onramp making good speed, I shall flick my   
   highbeams for them to proceed into highway.   
      
   #2.  If I am approaching onramp and vehicle is ahead of me in said onramp but   
   is slowing down for whatever reason(scared, not sure if they should go for it,   
   or mirrors hindering view due to non-BGE config) I will let off the gas and   
   flick highbeams for    
   them to accelerate and proceed - if they "get" my cue.  Many drivers don't.   
      
   #3a.  If I am alongside onramp and vehicle in onramp is abaft of me(in my 3-4   
   o'clock position - to my right and slightly behind),  I will accelerate to get   
   out of their way if they are moving slower than me.    
      
   #3b. If they are abaft of me and matching OR exceeding my speed, I will let   
   off gas or lightly brake to let them in.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)