I find it extremely strange how all these people exude extrovert energies

Always socializing, networking, strategizing, being careful and diplomatic and so smooth with how they deal with people.
How do they do it? Come across as sociable and likeable? People barely speak to me. I'm so uncharismatic. So..... Lame. So.... Extra. You can literally interrupt me while I'm in the middle of a conversation with someone to take them away and no one would notice. Sometimes it's as if it's done deliberately. People who start socializing with me stop as soon as they find out I'm not all that. That I'm not useful to them. That I don't have any friends.