Please spare the developed world of our cringe politics. The last thing the West wants is expats from a developing country protesting yet for another leader who is supposed to make his country great again.
The best thing overseas Pakistanis can do is to be of the best character. Be so impressive that you start to be associated with honesty, piety, civility and hard work. Just look at the respect the Koreans and Taiwanese enjoy in the West. Unfortunately, in countries like UK, every second mugshot is of a Pakistani, specially if it involves molestation of women. Overseas Pakistanis can support Imran khan's mission by spreading awareness about what Islam truly is, and why Muslims are suffering around the globe. Because at this moment, they think of us like backward minded. Practising Christians are most probable to have a soft corner for Muslims who are fighting Islamophobia. Reach out to them and socialize. They often turn out to be much better Muslims than the ones you find in the Subcontinent, if they convert.
No personal attacks intended, just my thoughts on the overall condition of overseas Pakistanis. Their contributions to Pakistan's economy are not ignored. There are some exciting times ahead for overseas Pakistanis, but staying reserved, and working on becoming better Muslims has a MUCH better benefit in the long run to counter Islamophobia and xenophobia against Pakistan.