if i went to the uk (im mexican) would the english be mean to me and think im muslim?

There are many people in the UK from all around the world. Most are well treated, especially if they are law abiding and make at least an effort to understand British cultural norms.

Undoubtedly you would run across a few yobs, but that could happen, Muslim or Mexican or Swedish for that matter.

We wouldn't think you're Muslim or be mean, but could you tell me why you would choose the UK out of all other nations on earth......just interested that's all.

Highly doubtful.

no since you wouldn't dress like a muslim.

Of course. They'll refuse to ever give you any tea and crumpets :(

Just wear a cross in your hat.

xenophobes exist all over the place.

Are you brown skinned? Light? Dark? If light, then no.