Could you please explain in detail how one can go about sending MXC tokens to their MetaMask wallet? Are there any specific steps or precautions one needs to take to ensure a successful and secure transfer? Additionally, is there a recommended way to verify that the transfer has been completed and the MXC tokens are safely stored in the MetaMask wallet? It would be greatly appreciated if you could also touch upon any potential issues or pitfalls that one should be aware of when performing such a transaction.