Trim in
Pull a sail control line to increase tension.
How to sign
Use Dominant R-hand: sheet rope classifier. The base or passive hand is Relevant sail and clew locus established. Set the sail and sheet. Start rope at the clew with slack visible. Pull decisively inward toward body or crew locus in one firm path. Stop with rope taut; no further movement. Set the relevant sail and sheet. With an R-hand rope classifier, pull decisively inward toward the body or crew locus; stop with the rope taut.