Not possible... yet...
Unless*!!!
Onactivate>self>firerelay
onrelay>self>firerelay
onrelay>player>setappearence>faceeventstuff
onrelay>player>setappearance>morefacestuff
onrelay>self>toggleevents>2 3
*Is a lie!
Maybe more face events to time the blinks better
Now we just need a face that looks like its blinking :3
I'm not so smart