Most importantly though is just to preform, high numbers, never losing a node in a 1v1, carrying a huttball and CC capping is the best way to be noticed. Every guild looks for those who preform regardless if it is PVE or PVP. An example today, I've been seeing a sentinel these past few days coming close to beating me in DPS, so I told a guildie to invite him and play with him. That guildie said he was good and I needed a 4th to 4v4 ranked against Gladium, having zero experience with this guy we ran together and it worked out. Make your presence known that is how you find other good players or guilds.