Now this is a complicated topic. Why would anyone do anything if they weren't expecting results. We do things to get results, after all. 

The key is in understanding that rather than focusing on the results, if you focus on the process and enjoy it, you are more likely to get better results. A guy who goes to the gym consistently and enjoys working out is more likely to achieve his goals compared to someone who is only there for the results. It will take a lot of time for results. If you are only seeking the gratification of the result, you will not be able to keep going when the going gets tough.

There are thousands of factors that lead to a certain outcome. Your effort is only one of them. Thus, just because you are doing something, it doesn't grant you the results you seek. You are playing a role in the results of your activities, but you are not the only cause. Thus, you cannot choose inaction. For your actions are somewhat, but not completely responsible for results. 

Having no expectations is thus, the ideal way to perform activities. This doesn't mean inaction, as explained above but rather a special form of detachment from results. This draws parallel from Stoicism too. 

Coming to the topic of social interactions, especially those close to you. Again, keeping no expectations will serve you well here. You are complete and non needy; which means that you cannot expect favours from others. You have no control over others’ behaviours and all you can do is expect nothing, for you will always be happy that way. You are what you are and that's all you can offer to a social situation. Thus, always be focused on improving yourself.You can become the kind of person that others like and are glad to be associated with. On that you have complete control. Learn to let go of those that don't appreciate you. You can make new, better friends easily. All that is needed is shared experiences. If you are non needy, it means you are independent and free. Thus, any time you spend with others rises out of a willingness to share your awesomeness and have fun in general which leads to genuine experiences.

Be chill, relaxed and have fun. You are capable of having fun with or without someone else. Act like it.