Write! Try to write a little every day. Most people find it hard to find the time, but if you try and set aside at least 15 minutes, it’s more than likely you'll write for longer.
Write about ‘what’ and ‘where’ you know if you can; it will be more believable to your readers.
Don’t write just one page, then spend ages agonising over that page to get it ‘right.’ Spending too much time editing and re-editing will mean it’s unlikely you’ll get past the first page, let alone the first chapter.
Once you’ve decided on your main characters, get to know them. The more you know and feel about your characters, the more real they will be to your readers.
Research: if you are writing about something you are unsure about, or a place you haven’t visited, research is your best friend. If your reader questions what they are reading or reads something that is not true (unless you are writing fantasy, for example) then make sure you have your facts right.
Not everyone likes to plan, but some element of planning is essential - even if it’s just the beginning, middle and the ending of your story. By having some idea of where your story is going, it will help you to piece together the story as you go along, whilst maintaining the plot.
Read! Reading your favourite book should help to give you an idea of the elements that keep you hooked and the styles that make you keep turning those pages!
Choose your words carefully and only use over complicated words if you really have to… make every word count!
Show, don’t tell. For example 'Anna is tired' is telling; 'Anna rubbed her eyes as she tried desperately to keep them open' is showing. Which one creates a vision in your mind? Showing helps readers to use their imagination, which in turn keeps them hooked!
Finally, get feedback! Sometimes, when you write something yourself, it’s hard to see the wood from the trees – excuse the pun! Asking a friend, family member or colleague to read your work and tell you how they feel about it can help you to make sure your writing makes sense to the general reader. And, more importantly, whether it makes them want to read more!