The Limpopo is currently running too high to be crossed at any of the drifts at Pafuri or Mapai. Usually remains so until June. So It's recommended to use the Giriyondo route (bordercrossing just north-east of Letaba in the Kruger NP)
Most important

Portuguese words:
Da Licensa? (May I) and of course
Obrigado (thank you).
source: mozguide.com