Help!! I'm new with goslings and have a concern for my one baby!

[ChickenMaster14]

My one baby gosling is shaking his/her head a lot and I'm worried, because he/she only does this when his/her head is wet. Maybe it's a sign of excitement? Help me please!!

PS
I also need help with sexing please.

 

[MagpieDucks]

Can you get a video of it doing it and upload it to YouTube or Vimeo?