i haven't done anything differently, however today i actually read what it meant because i noticed it jumped about 15 or so points and it states something about linking your hubs...i don't link them at all
The number by your avatar is your PROFILE score. This goes up when you post hubs and have a lot of community activity. It fluctuates several times during the week depending on your comments, your questions, your answers, etc. Right now mine is 90. It was 91 this morning. People do look at your profile score before deciding to read your hubs. There are some with scores as low as 1 and as high as 100.
The HubKarma score is the score you get based on your accolades. Mine is 74.
Your Hub score is the number on each hub. When you first publish a hub it is pretty low. 49 or 50. If you leave your hub saved unpublished for a few days, the score will creep up on its own. I have a hub I have been working on for several days but haven't published it yet. It has a score of 61 which is higher than some of my published hubs.
Believe it or not, writing this will count toward by profile score and my hubkarma but toward not my individual hubs.
HubKarma score is totally based on your linking to other hubs or topics, either by using the 'Suggest Links' feature before you publish your newly written hub, or by linking to the other hubs manually. Basically the more you link, the higher your HubKarma score, (mine is currently 91). It is important to be sure the links suggested are relevant though, as many of the suggested links are not really appropriate to your hubs. Your HubKarma score does have a small impact on your overall Hubber score (the number by your profile picture). The general opinion from Hubbers seems to be it is wise not to worry too much about your HubKarma score, as linking to other people's hubs only takes traffic away from your own hubs, so probably isn't a great move. It is a good idea to link to your own hubs through it though.
Quote from Help Section of Hubpages
"HubKarma is a score that reflects the degree to which you link to others' Hubs and to Topic pages in your own Hubs. Hubs that point to other relevant, high quality Hubs enhance readers' experience on HubPages and improve HubPages credibility as a trusted resource. HubKarma has some influence on your Hubber Score and is on a 0-100 scale. The link suggestion tool makes linking to other Hubs and Topic pages easier."
LOL, no I didn't Barry, but it seemed so many others had and were coming up with bizarre answers to the question, that I simply answered it correctly too (as you did), in the hope I might have better luck. Isn't it amazing how even many experienced Hubbers have no clue about what HubKarma is or how the score is calculated?