If you are talking to someone you know informally (you use tú with them), you would say "sé más profesional". If it is someone you know formally (you used usted with them), you would say "sea más profesional"
Translation: bailadores profesionales
Professional is said profesional in Spanish
"Professional golfer" in Spanish is "golfista profesional". It is pronounced "goal-FEES-tah pro-fess-see-oh-NAHL". Please see the Related link below for confirmation of the translation.
decir mas
"Ya no mas"
más
There is only one way to say hello in Spanish: hola.
You say "un poco más".
You can say "¿Tienes más fotos?"
errin
Mas mojitos.
You can say "¿Dónde estás?", or more formally, "¿Dónde está usted?"