This is the 8850th most frequent Russian word.
практикуйтесь
"Practice" (imperative, formal or plural).
The word "практикуйтесь" here is the imperative mood, encouraging the listener(s) to engage in regular practice for self-improvement.
Практикуйтесь каждый день, чтобы улучшить свои навыки.
Practice every day to improve your skills.
In this context, "практиковаться" is used as an infinitive form to discuss or suggest the action of practicing.
Я советую вам больше практиковаться в разговорной речи.
I advise you to practice speaking more.
Here, "практикуйтесь" is again in the imperative mood, emphasizing the importance of frequent practice for attaining success.