So we've all been in that sort of situation where a friend tells you about something they're involved in, maybe a fight they just had or an idea they've been bouncing around, when at some point they say "I don't know anon what do you think?"
Depending on the situation, and what kind of person you are, you might decide to go out right and tell them how you feel, what they're doing wrong, and what they should do about it. On the other hand you might feel compelled to stay reserved and not say too much outside of "yeah that's tough" or "you know I don't know anything about that but I hope you figure it out". Then there's the awkward middle where you tell them roughly what you would do in their situation followed by "but that's just my opinion....I dunno"
When it comes to cryptocurrency, and other investments, it's important to remember that there isn't a lot that can be guaranteed and predictions and speculations are just that, predictions and speculations. Now, hip and savvy seasoned vets probably are already aware of the markets unpredictable volatility and keep it in mind when making and reading speculations, but what about those new to the game? Sure, it's your own fault for not doing any research but if your friend who you trust has been trading and profiting for a good while says he's going to spend $200 in BTC on an altcoin he finds promising you might find yourself interested in jumping at the same opportunity. What you might not be considering is that the $200 he's spending might not be the same to him as the $200 your spending and next thing you know you're out a months savings and he's only out a small piece of his portfolio.
There's nothing wrong with asking a friend to show you how they got started or what they think the best tools are, but maybe don't try too hard to see what kind of moves they're making unless you're willing to match the research yourself instead of taking their word. And if you're the friend with the know-how maybe try your best not to give examples of what you're currently investing in and how much money you're going to make but perhaps instead give them an idea of where you get your information and a run down of the pros and cons of dealing with different situations, techniques, exchanges, etc from your point of view.
The reasoning behind all this isn't to say that if you listen to your friend you're guaranteed to lose all of your money, but if you did lose all, or even some, of your money after taking a friends direct advice in investing you're going to associate that lose with them which could turn a relationship sour even if you don't mean to have any hard feelings.
But that's just my opinion.