When asked, I simply encourage them to learn about the candidates before voting. I'll offer my opinion when asked.
I've had several people at work ask who I'm voting for. Because I don't think work is a proper place for chat like that, I always cut it short with saying it won't be Hillary.
I've bitten my tongue more than once when someone walked in, while I'm watching the news, and said they hate Hillary.
As they say, word of mouth is the best advertisement. That's because of the multiplication factor. You tell three people about a great product, they each tell three people, then those people each tell three people and so on.
Maybe I'm just making myself feel better, but it's my hope that when I convince somebody to make sure Hillary doesn't get in, I'm convincing others that they relay my message to as well. So far this week, I believe I convinced two other people, and hopefully they will convince their family, neighbors and friends. I guess I just believe that the grass roots strategy is the best. Most people throw away flyers and mail related to politics without even looking at it.