Good morning @rabeel
I can gladly tell you how is the procedure:

1. to vote for witness to steemgigs:
   Click on this link there https://steemit.com/~witnesses
   you write inside the box all the letters in minuscule:

2. 1. If you want to give your proxy, so that he adminsitre the vote of the witnesses: https://steemit.com/~witnesses
      you write inside the box all the letters in minuscule
      

In order for the action to be processed, you must click on the word highlighted in green:

vote
create proxy

Happy day