I appreciate what people are saying about following laws and stuff. I promise I won't be recommending any risky investments.
Please think again about this.
Good investment advice depends on the personal circumstances of the individual, their investment goals and risk appetite.
What is a risky investment? If I'm just about to retire and have a very low risk appetite, dumping all my cash into an index fund might be 'risky'. What if you suggest an index fund and the market drops 30%? What about insurance?
If I were you I would take the free lunch and provide some basic info (which it sounds like you have). If you want to get paid for 'advice', make it advice on how to reduce expenses - perhaps help people prepare and review their budget, identify areas of saving and then help them calculate the impact on their long-term financial position and prospects for retirement.