There are many ways. Lets keep this discussion short however. I would like to keep the topic on HNSS.
Flippers will often bid wack thin BID support in order to lower the BID and increase the spread. This increase in the spread reduces the incentive for a buyer to hit the ASK. The flipper will then put a BID in to purchase shares from those who are unwilling to wait to sell shares at the ASK.
Lower BID. Less buying pressure to sell at the ASK. Increased incentive to sell at the BID.
There are many ways, although that is probably the most used one.
Market Data 
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