The rose emoji is a classy option and is the textual version of giving them flowers or, even better, suggesting that they should bring you flowers. It doesn't come on too strong, but adding the rose ...

Of the six billion emoji that are sent globally every day, around 70% are emotion based – for example, smiley face, love hearts ... the difference between emoticons and emoji, Professor Vyv ...

Which shaking smiley face should you use ... but you can only choose up to 113 emoji to combine and they are all smileys. That means you can't be as creative in your creation as you might be ...