Here are the basics, I am relatively short and not a big guy. I never let this hold me back, however I feel this does not allow me to have presence.

Example if I'm waiting in line I've had people walk past me (not extremely common but has happened a couple of times, enough for me to notice) or if I'm out with the guys I've had a hostess not count me when we are getting seats (this happened earlier this week).

Could this come back to my body language? I am confident with how I carry myself, though it feels as people don't think I'm with a group because I'm not always involved.

When I go out with these guys it's clear that I have the lowest SMV, all of them are higher SMV, get approached are naturals or have been in the game longer than I have. I don't bring much but they invite me out regularly and are great guys

So how do I increase my presence, just that "aura" that tells people I am around or does this tie into social frame?