To sign a lease for a showroom for two months, you will typically need to follow these steps:

1. Identify potential locations for your showroom. Research commercial real estate listings and contact brokers or landlords to inquire about available space.
2. Tour the properties and evaluate the suitability of each location for your needs. Consider factors such as size, location, accessibility, parking, and zoning.
3. Negotiate the terms of the lease with the landlord or broker. Discuss the rental rate, lease duration, security deposit, utilities, and any other terms or conditions that are important to you.
4. Review the lease agreement carefully and seek legal advice if necessary. Make sure you understand all of the terms and obligations of the lease, such as rent payment due dates, maintenance responsibilities, and restrictions on use of the space.
5. Sign the lease agreement and provide any required documentation or payments, such as a security deposit or first month's rent.
6. Take possession of the showroom and begin setting up your displays and merchandise.
7. Maintain the space in good condition and comply with all terms of the lease agreement.
8. At the end of the lease term, vacate the showroom and return the space to the landlord in the condition specified in the lease agreement.

It is important to carefully evaluate your business needs and budget before committing to a showroom lease. Consider factors such as the expected foot traffic, advertising and marketing expenses, and potential sales to ensure that the showroom is a profitable investment. A qualified real estate broker or advisor can provide guidance on the best location and lease terms for your business.