from twitter link, you see yobit link. https://twitter.com/sanmcu/status/949051352633688064 click and register your account.
this link Take you step by step. https://twitter.com/sanmcu/status/949099269419548672
1. register your account
2. click invest box
3. click next until you see Doge
4. you see maximum, minimum coin invest
5. Enter the number of coins. (sample if you want to invest PROFIT coin)
6. click green button "Invest"
7. and you must play dice 5 time/day with minimum 0.01Doge bet