Few of us feel embarrassed when we observe a group, chatting among themselves, as we feel that they might be discussing about us.
In fact, it is not only about a group, any two people, whom we observe talking to each other we might feel that they are discussing about us. In those times, we might almost go mad in knowing the summary of their chatting, without which we can't even sleep or eat.
Though, the group spoke about us or not, keeping that point aside, to overcome this sort of problem, let's try this tip.
First of all, we should believe in ourselves completely and make sure we did all our tasks without any flaws. If we found any flaws, we should try to learn better and make sure we do not commit it again. Then we gain a confidence that we are capable of learning from our mistakes which takes us forward. If people still have a problem with us, remember, it is their problem, not ours.