As the first stage of this contest is coming to an end... I would like to give my input.
Firstly, I would like to thank everyone for participating in the contest, reading your responses filled myself with positive emotions, and I'm sure it did to others.
Now, on to the question:
This question is a bit tough due to the fact that making any type of impact even on yourself, is something that is not so easy to achieve... But that should never stop you from trying. So with that being said I'd like to first state what is HARD about being positive.
To me, the hardest thing about being positive, is understanding the situation. Often times for us to be able to give advice or make a positive impact in someones life you need to understand what the person is going through as you may be stepping into VERY SENSITIVE territory. Giving the appropriate positivity is always a factor, because although we may try to shine light to darkness, we will always need to be sensitive to each persons situation.
I usually try to find out the situation at hand (if the person is open or willing to discuss it) and based on that you give the appropriate positive feedback to assist someone in moving forward.
tldr;
But ultimately to me, the best way to make an impact not only on YOUR life but simultaneously in OTHERS' lives as well, is to always remain positive, always give 'the best you' to anyone and everyone at any given time, and I promise that without you even knowing it... You'll make that positive impact in someones life.
And that's my two cents... I hope you guys can stay positive and I hope you're spreading the positivity throughout life and your peers, I am looking forward for the remaining 20 days of positivity!