To standup, they are able to lean forward when firmly touched and told to do so. They will probably provide about 75% of the effort to standup and complete a pivot transfer with the caregiver providing assistance with trunk stability. One person can assist with the transfer from the bed to a wheelchair and from the wheelchair to a standing frame.
Moving on the count of three may be universal. Within ACL 2.0, moving with assistance on the count of three is effective, but the count must be slow, and they will move after the word three is spoken. They may echo counting with you.
Firm pressure from the caregiver's hands and supportive straps will probably be noticed and appreciated.