One of such things is the most basic one: mining!
I see a lot of people involved in this thread and in the Reddit sub-forums, and I ask myself how many of those are mining something else instead of Karma.
If you really believe in Karma (I do!) then you should be sure that the value will go up a lot in future, and therefore mining will turn out to be VERY profitable.
Also, in short term, the more people are mining the coin, the more difficult it gets for each miner to get the coins (that is who the difficulty algorithm works in Karma).
Therefore miners will not dump the coins for cheap in the exchanges, making the value of Karma raise a lot.
Having a higher net hash rate (right now it is really low) also makes a coin more visible to potential miners.
Join me in:
pool.terahashers.com
No need to register, just do (with cgminer or minerd):
stratum+tcp://pool.terahashers.com:5003 -u
My pool has a lot of nice features like VARDIFF (makes the most of your mining hardware), and uses a dedicated server maintained by me (you can send me a PM if you have any problems).
Like I already told, the website is still under construction (works fine under Chrome but not very well with Firefox), but the pool is tested an working perfect (payment processing included!).
While I get where you're coming from, it's even better to BUY Karma using other coins. For example, mine the most profitable, convert to Karma. This does two things: creates buy pressure and helps provide liquidity. Mining and holding decreases liquidity and decreases buying pressure, lowering the price or keeping it equal.
While this might be true, between harming another coin and mining and holding Karma, what could one say?