In Robinson Crusoe, Can I do single-pawn actions multiple times on the same card?
From the official rulebook: (p.6)

Note!
Each Action can be taken multiple times in the same round,
except for the Threat Action, which is always a one time Action taken
on a specific card, after which the card is discarded.

Only restrictions regarding &quot;Gathering resources&quot; are (p.9)

This [Gathering] Action cannot be taken directly on the Island tile with the
players’ Camp since players get resources from that tile during the
Production phase.

and

You can gather only once per round from each source; i.e. if one
player assigns his pawn(s) to gather from one source, no other player
can gather from that same source this round.


Addtionally, from the FAQ 1.0 (made by Ignacy Trzewiczek himself) (p.10)

If I put one of my pawns on any Action, will the second pawn placed
there automatically support me? Or could we, for example, place 3
single pawns on the Weapons track, to build 3 Weapons (and roll the
dice three times)?
It's your choice if you want to treat each pawn
separately.