First of all, you need to care. If you don't care you won't make the effort.
Secondly, you need to have values. Inspiring values. Values like honesty, patience, integrity, genuineness, humility and good-will. Decide which ones matter to you most.
And finally, you need to commit to your values. It takes guts to stick to your values through thick and thin. It's easy when the going is good, but when the chips are down or there's a lot at stake, that's when a person's true character will show. It takes guts, but you'll inspire people (and yourself), if you do it.