Let this speech will be devoted to them. Find someone who looks at you and smile at him, or simply nod, in general - make contacts. Educate yourself even more with thoughts from Sela Ward. Once you do this, you will feel a lift - in fact you are no longer alone on the stage, you are - those with whom you are in contact. Sing, staring into the eyes of individuals, jog look just above the heads of the audience nod in the crowd and let everyone thinks it was done for him. The audience - not a fool way, in any case not to go on stage with a haughty mien, and with the idea that the audience - a fool. The audience is much smarter than us, even if it's pretty drunk. That the public can see that you are doing right and what is not, and your attitude towards it must be friendly, because you are out to conquer their heart could, and did not cause envy to the fact that you are standing on stage with a guitar or a microphone in his mouth oh, excuse me - in his hands. Much depends on the music and from what it is if music is aggressive, hard feelings, then smile and wink at the girl from the crowd, howling in the second octave is about how corpses rise from their graves, not worth it. At best, the girl will cause an ambulance, at worst - you sever her boyfriend. Establishing contact, know the measure.