OBS - Safe Base to Grant?

[bd41flpk]

The following is your basic textbook OBS play, I just would like some comments on the proper (verbal - if any) mechanic?

B/R hits the ball to the right side of the infield and the 2nd baseman deflects the ball into short right field. The 1st baseman has his back to the play and is in the base path so of course the B/R runs into the 1st baseman.

I naturally call OBS (delayed dead ball).

Question: (as per rule: 'the runner may not be called out between the two bases where they were obstructed')

1) if the B/R gingerly walks towards 2nd base, does that mean that he is granted 'cart blanche' to then freely obtain 2nd base w/o getting called out?

2) if the B/R simply stands there in between 1st and 2nd due to confusion on the OBS call and is tagged out, do I simply award him 1st base ?

3) is there any kind of 'verbal' mention of where the B/R is 'safe' to go w/o getting called out?

Thanks in advance for the interpretations.