First of all you have to let other feel your presence and if possible your territory. You have to send the message that you are here and you have got some territory and have control on things. If you walk in a room or something, just make calculated moves, too much moves will show that you are uncomfortable. If you are sitting then try to use your personal things to mark your territory, like pen, Cell phone, Key chain, Keys anything that is available to you at that time.

You need to show that you are here and this belongs to you. If you are standing then do not  wrap your arms, this looks like you are not feeling good instead spread your arms and place them in pocket if possible , or at least one hand. You are here to send this message that you have arrived and you are a man , cool looking , this is my space and I’m comfortable here, and females may approach me…