Here in multicultural East London, UK, a West Indian might greet an older neighbour with friendly respect as 'Uncle'. I see you have a similar convention in India. But, along with 'bro', 'brother' and even 'mate' it may be considered over-informal and cheeky.

I live in an area that has become predominately Asian. I see on the local Facebook etc. pages a trend to call all women 'sister'. I have no idea whether this is exclusive to the Muslim community or also covers the Sikh, Hindu etc. sectors. Anyway, I get the impression that it would be inappropriate for me, a white male, to use 'sister' to an Asian neighbour.

Probably better to err on the side of formality when outside your own sub-community.

You might also want to know that in English, 'serviceman' doesn't mean 'waiter', it refers to a menber of the armed forces. In America particularly 'servicemen' are treated with extra respect. The British are rather more laid-back, but you should still know what the word means.

Here in multicultural East London, UK, a West Indian might greet an older neighbour with friendly respect as 'Uncle'. I see you have a similar convention in India. But, along with 'bro', 'brother' and even 'mate' it may be considered over-informal and cheeky.

I live in an area that has become predominately Asian. I see on the local Facebook etc. pages a trend to call all women 'sister'. I have no idea whether this is exclusive to the Muslim community or also covers the Sikh, Hindu etc. sectors. Anyway, I get the impression that it would be inappropriate for me, a white male, to use 'sister' to an Asian neighbour. It's an in-group thing.

Probably better to err on the side of formality when outside your own sub-community.

You might also want to know that in English, 'serviceman' doesn't mean 'waiter', it refers to a menber of the armed forces. In America particularly 'servicemen' are treated with extra respect. The British are rather more laid-back, but you should still know what the word means.

Here in multicultural East London, UK, a West Indian might greet an older neighbour with friendly respect as 'Uncle'. I see you have a similar convention in India. But, along with 'bro', 'brother' and even 'mate' it may be considered over-informal and cheeky.

You might also want to know that in English, 'serviceman' doesn't mean 'waiter', it refers to a menber of the armed forces. In America particularly 'servicemen' are treated with extra respect. The British are rather more laid-back, but you should still know what the word means.

Here in multicultural East London, UK, a West Indian might greet an older neighbour with friendly respect as 'Uncle'. I see you have a similar convention in India. But, along with 'bro', 'brother' and even 'mate' it may be considered over-informal and cheeky.

I live in an area that has become predominately Asian. I see on the local Facebook etc. pages a trend to call all women 'sister'. I have no idea whether this is exclusive to the Muslim community or also covers the Sikh, Hindu etc. sectors. Anyway, I get the impression that it would be inappropriate for me, a white male, to use 'sister' to an Asian neighbour.

Probably better to err on the side of formality when outside your own sub-community.

You might also want to know that in English, 'serviceman' doesn't mean 'waiter', it refers to a menber of the armed forces. In America particularly 'servicemen' are treated with extra respect. The British are rather more laid-back, but you should still know what the word means.