How to interact positively with newly joined employees and boost their moral?

Thank you for the invitation

I agree with colleagues answer

With greetings and appreciation

Thank you for the invitation, before a new employee joined to their  work site location, they need to be briefed, introduced with the higher managers and an in house training before joining is required in order for them to be familiarized with the companies policies, procedures and new environment so that they can be ready to start working smoothly, regards...

working as a team and helping other employees.

Thanks 

Try to learn and train them something as a senior 

Well for me, you have to be true to yourself accompanied with good attitude and hard work. Never pretend to be someone else or to do things beyond your capabilities in order to help the company. As we always say, honesty is the best policy.

Set development and introductory goals and communicate daily, weekly and monthly with employees. Make sure they are meeting the required Output. Coaching and Counselling them. 

First of all, make the enviornment good where the newly joined employees get comfortable, once they get comfortable then they feel easy to do their work. To boost up their moral make the attitude positive towards them. If something which they are not able to do that then dnt degrade them encourage and help them. Dnt try to loose their confident.

 my professional exposures have afforded me opportunities to work in multi-disciplinary and multi-cultural job situations, so ican help them to know the ruel of the company and who they can do thier jobs very easy.

Making them be part of the process through top notch induction.

A greeting with a smile is best.

Ask them how is everything going(weekly twice). if they have any issue they will open up, also you get to study that person and this will lead way to boost their moral.