In the past 2 years of my life, I have tried my hardest to be more kind to everyone I come across. This reform has brought many new friends, but also a lot of warnings. Several people have told me I am being 'too trusting' with certain individuals who may have a less that wonderful reputation. I have found sweet friendships in people that I was warned to steer clear of, and it is a constant reminder of why I began to stop judging others before I ever spoke to them. If it seems like the entire world is against them, they probably need someone that will just be kind and look happy to see them every once in a while. Nobody is perfect, and not everyone can be friends with everyone, but you don't have to turn a cold shoulder to those you aren't fond of. Being fake and being respectful are very different.
Of course, the things you hear are going to influence how you see someone, but if that's all you base your opinion on that isn't very wise. If those warnings happen to be true, then at least you found out for yourself and you can choose to trust them or not. Being nice to people will get you so far if you just put your preconceived ideas of them aside for a second to talk to them. If you connect with someone, then be friends with them! I have met so many people that I enjoy talking to one on one but when they're with their friends they're not as enjoyable, and that's okay. Everyone adapts to the people they're with.
So the next time someone tries to tell you to stop talking to someone because of some supposed shady interaction, just remember:
Be kind to one another. It's really important.