Halibit, as for me, giveaways mostly useless, especcially on exchange with already created wallets.  Click-get-sell-forget.
Best advertisement - rate increase, filling with BTC or USE market, and more services for MRC to purchase goods (PC games, souvenirs, T-shorts etc.)
Maybe some video guide (many still donno how to mine N-factor currencies) with lesson how to setup, donno if it useful.

As you know main crypto currency goal - its usage. Usage and spreading, capitalisation filling with other real currencies. If people see they can get somthing woth MRC itself  (they cant do it with like 300 other cryptos) - it will be used.