Great way is to make bitcoin with bitcoin that is trading and renting on trading and exchage sites like yobit and polonix which i use personally i recomend you. but i am not responsible for your investment.
Supposedly if you advise someone to do trades you also have to accompany the tips and tricks on trade. It will show your responsibility. Otherwise that guy will potentially lose money in vain, trading need the experience in predicting fluctuations graph.