To dream that you are only wearing socks implies that you are open-minded and sincere. You usually bend to the will of others, rather than making your own decisions.
To see a single sock in your dream can be a play on the word 'sock' and mean striking someone in anger. It may also indicate that you have received some shocking gossip or rumor.
To dream of seeing things in pairs suggests a fair and just person who doesn't enjoy being alone. Note the types of pairs for clues to resolve in waking situations. Are they matched or mismatched pairs?
To dream of pairs with missing components (e.g. socks without mates) implies anxiety about fulfilling an obligation or feeling alone in this world.