If you are looking to find someone and you know their full name then it becomes easier for you to look for them online through the various options that would be discussed here. One of the ways that you could go about looking for people online is through the various social media platforms as the vast majority of people who have access to the internet would have a presence on social media in some form.
Even if you do not find them directly, you will be able to find them through their relatives for example who may have an account on one of the social media platforms which would simplify the process of identifying the person that you might be looking forward to get in touch with again following a long break.
Facebook, for example, is the largest social media platform whereby most of the individuals can be expected to have an account so it becomes easier for you to find them this way. If you are looking for someone named Nicholas Trudeau for example, then you will come across a number of people named Nicholas as the name tends to be quite common.
It would therefore be a better option for you to specify their location as well when searching for them such as Nicholas Trudeau Florida so that you can get a list of all people improving your chances of finding the right Nicholas that you might be after.