Go out with members of the trans-community in public, not just to trans-orientated events or to safe LGBT venues but out in general society. Do you invite your trans friends to the same events you invite your other friends to?
This weekend I met up with a transwoman at my favourite café in Sevenoaks, where I am a well-known customer. I also went to Brands Hatch race track and sat in the stands with a transman. And last week, I took four wonderful transwomen (one full-time and three occasional crossdressers) to a local hotel for afternoon tea, a hotel where I am a gym member. I also welcome members of the trans-community into my home in full view of the neighbours.
Go to pride events and maybe even go a step further and volunteer to help run a pride event: this could be running a stall, being marshall, or even being part of the organising committee. Last summer, I organised the Transliving stall at four different pride events (including the big Sparkle celebration in Manchester).
Do you publicly support the transgender community? Do you show your support on social media? I don't mean a separate social media account that you keep separate from the rest of your life; I mean your main social media account that your friends, family and colleagues can all view and see. Do you own and wear clothing that shows your support for the trans-community? For example, I have a trans-ally T-shirt and a branded Transliving hoodie with my name emblazoned on the back.
Actively campaign for transgender rights. That doesn't mean you need to shout abuse at those who disagree; personally, I think this is counterproductive. I've seen pictures of demonstrations with masked individuals hurling insults at the other side; to me, this sends out a bad image to those who are still undecided. And why do they need to hide their faces? Are they ashamed? But do go on marches and demonstrations.
There are other practical actions you can take, too: for example, have you written to your Member of Parliament (or other elected representatives where you live)?
Vote with your feet! If you belong to groups or frequent places that are anti-trans, stop! I've been excluded from my former church for having transgender friends and refusing to back down.