There are several differences between working relationships and personal relationships.
Personal relationships are the unpaid, social relationships that you have with your family and friends. These are informal relationships and you have the choice about whether you want to maintain them or not. Physical contact such as touching, hugging and kissing is appropriate in these types of relationships as is the giving and receiving of gifts
Conversely, working relationships are the formal relationships that you have with the clients you support, their family, your managers and co-workers and outside agencies. Unless you are a volunteer, you will be paid for your role. Physical contact will limited and records will be kept. Gifts should not be given or received. Very often, you will know more about the client (for the purpose of supporting them effectively) than they know about yourself.