If you've just met a person you like, you'd probably want to introduce yourself.
To make it simple:
Ja sam Guide.
I am Guide.
Ko si ti? or Kako se ti zoveš?
Who are you? or What is your name?
As you may have noticed, some people have trouble deciding your gender. To clear this up, you can say:
Ja sam žena or Ja sam čovek
I am a woman or I am a man