Look behind the scenes of any successful business, and you will probably find a team of loyal, hard-working, and eager staff. If you run your own company or department but feel that your staff need a bit of encouragement or they aren't as driven as they perhaps could be – don’t worry. There are lots of things you can do to turn things around.
Here are 4 ways to boost employee morale and motivate staff. 
Create a friendly and welcoming working environment 
If your staff dread coming to work, then they are not likely to give their best during their working day, nor are they likely to be at all motivated. Are your staff able to get on with their work and have a bit of banter now and again with colleagues, or are you inclined to micro-manage or implement a no-talking policy? If it's the latter, then you will never get the best out of your staff.
As long as the work is being done, don't be afraid to allow your staff to let their hair down a little. The happier they are, the more motivated they are likely to become. Give them some leeway, and you might be surprised to see how productive things become. 
Source: https://www.entrepreneurshipsecret.com/boost-employee-morale/