Basically, give people your full attention when talking to them, and avoid primal displays of dominance or subservience. Mostly the attention part.
Could you elaborate on this? How do you resolve significant differences in height?
Another important bit is that if someone is sitting down, you should sit down next to them. If they're at their desk and there's no chair, squat or kneel.
Leave escape room.
Whether it's a bar or a cubicle, a woman will (in general, according to my wife and other female friends) be aware of being pinned in. For those not thinking of it, it's perfectly natural to stand at the end of a bench seat or in a cubicle opening to talk, but this gives them no "escape" from the situation and increases tension. Simply standing to the side of that escape path makes the situation less tense.
On the generally-male side of things, (drawing purely from my own experiences) I definitely notice when tall people are close to me, but if they stand a little further back I don't really notice their height.
E.g. NBA players who huddle around their coach
Also, don't sit straight across from them, police interrogation style. It's intimidating, especially in situation like an interview. Sit at the orthogonal side of the table.
The pattern is "If a junior woman can't code, let's promote her as team lead; If a junior man can't code, let's teach him to code" - and this is wrong because both sides have everything to lose with this behavior.